Piano

A Bösendorfer grand piano
Keyboard instrument
Hornbostel–Sachs classification	314.122-4-8 (Simple chordophone with keyboard sounded by hammers)
Inventor(s)	Bartolomeo Cristofori
Developed	Early 18th century
Playing range

The piano is a musical instrument played by means of a keyboard. It is one of the most popular instruments in the world. Widely used in classical and jazz music for solo performances, ensemble use, chamber music and accompaniment, the piano is also very popular as an aid to composing and rehearsal. Although not portable and often expensive, the piano's versatility and ubiquity have made it one of the world's most familiar musical instruments.

Pressing a key on the piano's keyboard causes a felt-covered hammer to strike steel strings. The hammers rebound, allowing the strings to continue vibrating at their resonant frequency.^[1] These vibrations are transmitted through a bridge to a sounding board that more efficiently couples the acoustic energy to the air. The sound would otherwise be no louder than that directly produced by the strings. When the key is released, a damper stops the string's vibration. See the article on Piano key frequencies for a picture of the piano keyboard and the location of middle-C. In the Hornbostel-Sachs system of instrument classification, pianos are considered chordophones.

The word piano is a shortened form of pianoforte (PF), the Italian word for the instrument (which in turn derives from the previous terms "gravicembalo col piano e forte" and fortepiano). The musical terms "piano" and "forte" mean "quiet" and "loud," and in this context refers to the variations in volume of sound the instrument produces in response to a pianist's touch on the keys: the greater a key press's velocity, the greater the force of the hammer hitting the string(s), and the louder the note produced.

History[link]

Grand piano by Louis Bas of Villeneuve-lès-Avignon, France, 1781. Earliest French grand piano known to survive; includes an inverted wrestplank and action derived from the work of Bartolomeo Cristofori (ca. 1700) with ornately decorated soundboard.

Early piano replica by the modern builder Paul McNulty, after Walter & Sohn, 1805

The piano was founded on earlier technological innovations. The first string instruments with struck strings were the hammered dulcimers.^[2] During the Middle Ages, there were several attempts at creating stringed keyboard instruments with struck strings.^[3] By the 17th century, the mechanisms of keyboard instruments such as the clavichord and the harpsichord were well known. In a clavichord the strings are struck by tangents, while in a harpsichord they are plucked by quills. Centuries of work on the mechanism of the harpsichord in particular had shown the most effective ways to construct the case, soundboard, bridge, and keyboard.

The invention of the modern piano is credited to Bartolomeo Cristofori (1655–1731) of Padua, Italy, who was employed by Ferdinando de' Medici, Grand Prince of Tuscany, as the Keeper of the Instruments. He was an expert harpsichord maker, and was well acquainted with the body of knowledge on stringed keyboard instruments. It is not known exactly when Cristofori first built a piano. An inventory made by his employers, the Medici family, indicates the existence of a piano by the year 1700; another document of doubtful authenticity indicates a date of 1698. The three Cristofori pianos that survive today date from the 1720s.^[4][5]

While the clavichord allowed expressive control of volume and sustain, it was too quiet for large performances. The harpsichord produced a sufficiently loud sound, but had little expressive control over each note. The piano was likely formed as an attempt to combine loudness with control, avoiding the trade-offs of available instruments.

Cristofori's great success was solving, with no prior example, the fundamental mechanical problem of piano design: the hammer must strike the string, but not remain in contact with it (as a tangent remains in contact with a clavichord string) because this would dampen the sound. Moreover, the hammer must return to its rest position without bouncing violently, and it must be possible to repeat a note rapidly. Cristofori's piano action was a model for the many different approaches to piano actions that followed. Cristofori's early instruments were made with thin strings, and were much quieter than the modern piano—but compared to the clavichord (the only previous keyboard instrument capable of dynamic nuance via the keyboard) they were much louder and had more sustain.

Cristofori's new instrument remained relatively unknown until an Italian writer, Scipione Maffei, wrote an enthusiastic article about it (1711), including a diagram of the mechanism. This article was widely distributed, and most of the next generation of piano builders started their work due to reading it. One of these builders was Gottfried Silbermann, better known as an organ builder. Silbermann's pianos were virtually direct copies of Cristofori's, with one important addition: Silbermann invented the forerunner of the modern damper pedal, which lifts all the dampers from the strings simultaneously.

Silbermann showed Johann Sebastian Bach one of his early instruments in the 1730s, but Bach did not like it at that time, claiming that the higher notes were too soft to allow a full dynamic range. Although this earned him some animosity from Silbermann, the criticism was apparently heeded. Bach did approve of a later instrument he saw in 1747, and even served as an agent in selling Silbermann's pianos.^[6]

Piano-making flourished during the late 18th century in the Viennese school, which included Johann Andreas Stein (who worked in Augsburg, Germany) and the Viennese makers Nannette Streicher (daughter of Stein) and Anton Walter. Viennese-style pianos were built with wood frames, two strings per note, and had leather-covered hammers. Some of these Viennese pianos had the opposite coloring of modern-day pianos; the natural keys were black and the accidental keys white.^[7] It was for such instruments that Wolfgang Amadeus Mozart composed his concertos and sonatas, and replicas of them are built today for use in authentic-instrument performance of his music. The pianos of Mozart's day had a softer, more ethereal tone than today's pianos or English pianos, with less sustaining power. The term fortepiano is nowadays often used to distinguish the 18th-century instrument from later pianos.

	Comparison of piano sound 19th century piano sound Frédéric Chopin's Étude Op. 25, No. 12, on an Erard piano made in 1851 Modern piano sound The same piece, on a modern piano
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In the period lasting from about 1790 to 1860, the Mozart-era piano underwent tremendous changes that led to the modern form of the instrument. This revolution was in response to a preference by composers and pianists for a more powerful, sustained piano sound, and made possible by the ongoing Industrial Revolution with resources such as high-quality piano wire for strings, and precision casting for the production of iron frames. Over time, the tonal range of the piano was also increased from the five octaves of Mozart's day to the 7⅓ or more octaves found on modern pianos.

Broadwood square action (click for page with legend)

Early technological progress owed much to the firm of Broadwood. John Broadwood joined with another Scot, Robert Stodart, and a Dutchman, Americus Backers, to design a piano in the harpsichord case—the origin of the "grand". They achieved this in about 1777. They quickly gained a reputation for the splendour and powerful tone of their instruments, with Broadwood constructing ones that were progressively larger, louder, and more robustly constructed. They sent pianos to both Joseph Haydn and Ludwig van Beethoven, and were the first firm to build pianos with a range of more than five octaves: five octaves and a fifth during the 1790s, six octaves by 1810 (Beethoven used the extra notes in his later works), and seven octaves by 1820. The Viennese makers similarly followed these trends; however the two schools used different piano actions: Broadwoods were more robust, Viennese instruments were more sensitive.

Erard square action (click for page with legend)

By the 1820s, the center of innovation had shifted to Paris, where the Pleyel firm manufactured pianos used by Frédéric Chopin and the Érard firm manufactured those used by Franz Liszt. In 1821, Sébastien Érard invented the double escapement action, which incorporated a repetition lever (also called the balancier) that permitted a note to be repeated even if the key had not yet risen to its maximum vertical position. This facilitated rapid playing of repeated notes, and this musical device was pioneered by Liszt. When the invention became public, as revised by Henri Herz, the double escapement action gradually became standard in grand pianos, and is still incorporated into all grand pianos currently produced.

Other improvements of the mechanism included the use of felt hammer coverings instead of layered leather or cotton. Felt, which was first introduced by Henri Pape in 1826, was a more consistent material, permitting wider dynamic ranges as hammer weights and string tension increased. The sostenuto pedal (see below), invented in 1844 by Jean Louis Boisselot and improved by the Steinway firm in 1874, allowed a wider range of effects.

One of the major technical innovations that helped to create the sound of the modern piano was the use of a strong iron frame. Also called the "plate", the iron frame sits atop the soundboard, and serves as the primary bulwark against the force of string tension. The increased structural integrity of the iron frame allowed the use of thicker, tenser, and more numerous strings. In a modern grand the total string tension can exceed 20 tons. The single piece cast iron frame was patented in 1825 in Boston by Alpheus Babcock, combining the metal hitch pin plate (1821, claimed by Broadwood on behalf of Samuel Hervé) and resisting bars (Thom and Allen, 1820, but also claimed by Broadwood and Érard). Babcock later worked for the Chickering & Mackays firm who patented the first full iron frame for grand pianos in 1843. Composite forged metal frames were preferred by many European makers until the American system was fully adopted by the early 20th century.

Other important advances included changes to the way the piano was strung, such as the use of a "choir" of three strings rather than two for all but the lowest notes, and the implementation of an over-strung scale in which the strings are placed in two separate planes, each with its own bridge height. (This is also called "cross-stringing". Whereas earlier instruments' bass strings were a mere continuation of a single string plane, over-stringing placed the bass bridge behind and to the treble side of the tenor bridge area. This crossed the strings, with the bass strings in the higher plane.) This permitted a much narrower cabinet at the "nose" end of the piano, and optimized the transition from unwound tenor strings to the iron or copper-wrapped bass strings. Over-stringing was invented by Jean-Henri Pape during the 1820s, and first patented for use in grand pianos in the United States by Henry Steinway, Jr. in 1859.

Duplex scaling of an 1883 Steinway Model 'A'. From lower left to upper right: main sounding length of strings, treble bridge, duplex string length, duplex bar (nickel-plated bar parallel to bridge), hitchpins, plate strut with bearing bolt, plate hole.

Duplex scaling, patented in 1872 by Theodore Steinway, enhanced the voice of each note by using sympathetic vibration. Short lengths of non-speaking wire were bridged by the aliquot throughout much of upper range of the piano, always in locations that caused them to vibrate in conformity with their respective overtones—typically in doubled octaves and twelfths. Somewhat similar systems were developed by Julius Blüthner (Aliquot stringing, 1873), as well as Pascal-Joseph Taskin (1788), and Collard & Collard (1821). Each used more distinctly ringing, undamped vibrations to modify tone, except the Blüthner Aliquot stringing which uses an additional fourth string in the upper two treble sections. While the hitchpins of these separately suspended Aliquot strings are raised slightly above the level of the usual tri-choir strings, they are not struck by the hammers but rather are damped by attachments of the usual dampers.

Some early pianos had shapes and designs that are no longer in use. The square piano (not truly square, but rectangular) was cross strung at an extremely acute angle above the hammers, with the keyboard set along the long side. This design is attributed to Gottfried Silbermann or Christian Ernst Friderici on the continent, and Johannes Zumpe or Harman Vietor in England, and it was improved by changes first introduced by Guillaume-Lebrecht Petzold in France and Alpheus Babcock in the United States. Square pianos were built in great numbers through the 1840s in Europe and the 1890s in America, and saw the most visible change of any type of piano: the iron-framed, over-strung squares manufactured by Steinway & Sons were more than two-and-a-half times the size of Zumpe's wood-framed instruments from a century before. Their overwhelming popularity was due to inexpensive construction and price, although their tone and performance were limited by narrow soundboards, simple actions and string spacing that made proper hammer alignment difficult.

The mechanism in upright pianos is perpendicular to the keys.

The tall, vertically strung upright grand was arranged like a grand set on end, with the soundboard and bridges above the keys, and tuning pins below them. The term was later revived by many manufacturers for advertising purposes. Giraffe, pyramid and lyre pianos were arranged in a somewhat similar fashion in evocatively shaped cases.

The very tall cabinet piano was introduced about 1805 and was built through the 1840s. It had strings arranged vertically on a continuous frame with bridges extended nearly to the floor, behind the keyboard and very large sticker action. The short cottage upright or pianino with vertical stringing, made popular by Robert Wornum around 1815, was built into the 20th century. They are informally called birdcage pianos because of their prominent damper mechanism. Pianinos were distinguished from the oblique, or diagonally strung upright made popular in France by Roller & Blanchet during the late 1820s. The tiny spinet upright was manufactured from the mid-1930s until recent times. The low position of the hammers required the use of a "drop action" to preserve a reasonable keyboard height.

Modern upright and grand pianos attained their present forms by the end of the 19th century. Improvements have been made in manufacturing processes, and many individual details of the instrument continue to receive attention.

History and musical performance[link]

Thelonious Monk at Minton's Playhouse, New York City, 1947

Much of the most widely admired piano repertoire in classical music, for example, that of Haydn, Mozart, and Beethoven, was composed for a type of instrument (the fortepiano) that is rather different from the modern instruments on which this music is normally performed today. Even the music of the Romantic movement, including Liszt, Chopin, Robert Schumann, Felix Mendelssohn and Johannes Brahms, was written for pianos substantially different from modern pianos.

Starting in Beethoven's later career, the fortepiano evolved into the modern piano as we know it today. Modern pianos were in wide use by the late 19th century. They featured an octave range larger than the earlier fortepiano instrument, adding around 30 more keys to the instrument. The mechanical action structure of the upright piano was invented in London, England in 1826 by Robert Wornum, and upright models became the most popular model, also amplifying the sound.^[8] Mass production in factories made them more affordable for a larger number of people. They appeared in music halls and pubs during the 19th century, providing entertainment through a piano soloist, or in combination with a small band. Pianists began accompanying singers or dancers performing on stage, or patrons dancing on a dance floor.

During the 19th century, American musicians playing for working-class audiences in small pubs and bars, particularly African-American composers, developed new musical genres based on the modern piano. Ragtime music, popularized by composers such as Scott Joplin, reached a broader audience by 1900. The popularity of ragtime music was quickly succeeded by Jazz piano. New techniques and rhythms were invented for the piano, including ostinato for boogie woogie, and Shearing voicing. George Gershwin's Rhapsody in Blue broke new musical ground by combining American jazz piano with symphonic sounds. Comping, a technique for accompanying jazz vocalists on piano, was exemplified by Duke Ellington's technique. Honky tonk music, featuring yet another style of piano rhythm, became popular during the same era. Bebop techniques grew out of jazz, with leading composers such as Thelonious Monk and Bud Powell. In the late 20th century, Bill Evans composed pieces combining classical techniques with his jazz experimentations. Herbie Hancock was one of the first jazz pianists to find mainstream popularity working with newer urban music techniques.

Pianos have also been used in rock and roll by entertainers such as Jerry Lee Lewis, Little Richard, Elton John, and Billy Joel to name just a few.

Modernist styles of music have also appealed to composers writing for the modern grand piano, including John Cage and Philip Glass.

Modern piano[link]

A schematic depiction of the construction of a pianoforte (part names are listed in the illustration's file)

Physics[link]

A pianist playing Prelude and Fugue No. 23 in B major (BWV 868) from Bach's The Well-Tempered Clavier on a grand piano

When the key is struck, a chain reaction occurs to produce the sound. First, the key raises the wippen, which forces the jack against the hammer roller (or "knuckle"). The hammer roller then lifts the lever carrying the hammer. The key also raises the damper; and immediately after the hammer strikes the wire it falls back, allowing the wire to resonate. When the key is released the damper falls back onto the strings, stopping the wire from vibrating.^[9] The vibrating piano strings themselves are not very loud, but their vibrations are transmitted to a large soundboard that moves air and thus converts the energy to sound. The irregular shape and off-center placement of the bridge ensures that the soundboard vibrates strongly at all frequencies.^[10] (See Piano action for a diagram and detailed description of piano parts.)

There are three factors that influence the pitch of a vibrating wire.

• Length: All other factors the same, the shorter the wire, the higher the pitch.
• Mass per unit length: All other factors the same, the thinner the wire, the higher the pitch.
• Tension: All other factors the same, the tighter the wire, the higher the pitch.

A vibrating wire subdivides itself into many parts vibrating at the same time. Each part produces a pitch of its own, called a partial. A vibrating string has one fundamental and a series of partials. The most pure combination of two pitches is when one is double the frequency of the other.^[11]

For a repeating wave, the velocity, v, equals the wavelength, λ, times the frequency, f.

v = λf

On the piano string, waves reflect from both ends. The superposition of reflecting waves results in a standing wave pattern, but only for wavelengths λ = 2L, L, L/2, … = 2L/n, where L is the length of the string. Therefore the only frequencies produced on a single string are f = nv/(2L). Timbre is largely determined by the content of these harmonics. Different instruments have different harmonic content for the same pitch. A real string vibrates at harmonics that are not perfect multiples of the fundamental. This results in a little inharmonicity, which gives richness to the tone but causes significant tuning challenges throughout the compass of the instrument.^[10]

Striking the piano key with greater force increases the amplitude of the waves and therefore the volume. From pianissimo (pp) to fortissimo (ff) the hammer velocity changes by almost a factor of a hundred. The hammer contact time with the string shortens from 4 ms at pp to less than 2 ms at ff.^[10] If two wires adjusted to the same pitch are struck at the same time, the sound produced by one reinforces the other, and a louder combined sound of shorter duration is produced. If one wire vibrates out of synchronization with the other, they subtract from each other and produce a softer tone of longer duration.^[12]

Types[link]

Modern pianos have two basic configurations (with subcategories): the grand piano and the upright piano.

Grand[link]

Steinway grand piano in the White House August Förster upright piano

In grand pianos, the frame and strings are horizontal, with the strings extending away from the keyboard. The action lies beneath the strings, and uses gravity as its means of return to a state of rest.

There are many sizes of grand piano. A rough generalization distinguishes the concert grand (between 2.2 and 3 metres long, about 7–10 feet) from the parlor grand or boudoir grand (1.7 to 2.2 metres long, about 6–7 feet) and the smaller baby grand (around 1.5 metres (5 feet)).

All else being equal, longer pianos with longer strings have larger, richer sound and lower inharmonicity of the strings. Inharmonicity is the degree to which the frequencies of overtones (known as partials or harmonics) sound sharp relative to whole multiples of the fundamental frequency. This results from the piano's considerable string stiffness; as a struck string decays its harmonics vibrate, not from their termination, but from a point very slightly toward the center (or more flexible part) of the string. The higher the partial, the further sharp it runs. Pianos with shorter and thicker strings, i.e. small pianos with short string scales, have more inharmonicity. The greater the inharmonicity, the more the ear perceives it as harshness of tone.

Inharmonicity requires octaves to be "stretched", or tuned to a lower octave's corresponding sharp overtone rather than to a theoretically correct octave. If octaves are not stretched, single octaves sound in tune, but double—and notably triple—octaves are unacceptably narrow. Stretching a small piano's octaves to match its inherent inharmonicity level creates an imbalance among all the instrument's intervallic relationships, not just its octaves. In a concert grand, however, the octave "stretch" retains harmonic balance, even when aligning treble notes to a harmonic produced from three octaves below. This lets close and widespread octaves sound pure, and produces virtually beatless perfect fifths. This gives the concert grand a brilliant, singing and sustaining tone quality—one of the principal reasons that full-size grands are used in the concert hall. Smaller grands satisfy the space and cost needs of domestic use.

Upright (vertical)[link]

Upright pianos, also called vertical pianos, are more compact because the frame and strings are vertical. The hammers move horizontally, and return to their resting position via springs, which are susceptible to degradation. Upright pianos with unusually tall frames and long strings are sometimes called upright grand pianos. Some authors classify modern pianos according to their height and to modifications of the action that are necessary to accommodate the height.

• Studio pianos are around 42 to 45 inches tall. This is the shortest cabinet that can accommodate a full-sized action located above the keyboard.
• Console pianos have a compact action (shorter hammers), and are a few inches shorter than studio models.
• The top of a spinet model barely rises above the keyboard. The action is located below, operated by vertical wires that are attached to the backs of the keys.
• Anything taller than a studio piano is called an upright.

Other types[link]

Player piano from 1920

The 19th century saw the introduction of the toy piano.

In 1863, Henri Fourneaux invented the player piano, which plays itself from a piano roll. A machine perforates a performance recording into rolls of paper, and the player piano replays the performance using pneumatic devices. Modern equivalents of the player piano include the Bösendorfer CEUS and the Yamaha disklavier, using solenoids and MIDI rather than pneumatics and rolls.

A silent piano is an acoustic piano having an option to silence the strings by means of an interposing hammer bar. They are designed for private silent practice.

Edward Ryley invented the transposing piano in 1801. It has a lever under the keyboard as to move the keyboard relative to the strings so a pianist can play in a familiar key while the music sounds in a different key.

The prepared piano, present in some contemporary art music, is a piano with objects placed inside it to alter its sound, or has had its mechanism changed in some other way. The scores for music for prepared piano specify the modifications, for example instructing the pianist to insert pieces of rubber, paper, metal screws, or washers in between the strings. These either mute the strings or alter their timbre. A harpsichord-like sound can be produced by placing or dangling small metal buttons in front of the hammer.

In 1954 a German company exhibited a wire-less piano at the Spring Fair in Frankfurt, Germany that sold for $238 dollars. The wires were replaced by metal bars of different alloys that replicated the standard wires when played.^[13]

Electric pianos use electromagnetic pickups to amplify the sound of the strings. Playing a note loudly causes the electric signal to clip, and the player can incorporate the distortion into his or her expressive range.

Digital pianos use digital sampling technology to reproduce the sound of each piano note. Digital pianos can be sophisticated, with features including working pedals, weighted keys, multiple voices, and MIDI interfaces. However, when one depresses the damper pedal (see below) on such an instrument, there are no strings to vibrate sympathetically. The synthesis software of some higher end digital pianos, such as the Yamaha Clavinova series, or the Kawai MP8 series, incorporates physical models of sympathetic vibration.

With the advent of powerful desktop computers, highly realistic pianos have become available as affordable software modules. Some of these modules, such as the 2004 Synthogy's Ivory, use multi-gigabyte piano sample sets with as many as 90 recordings, each lasting many seconds, for each of the 88 (some have 81) keys under different conditions. Additional samples emulate sympathetic resonance, key release, the drop of the dampers, and simulations of piano techniques like re-pedaling to augment these conditions. Some other software modules, such as Modartt's 2006 Pianoteq, use no samples whatsoever and are a pure synthesis of all aspects of the physicalities that go into the creation of a real piano's sound.

Today, piano manufactures take advantage of innovative pianos that play themselves via a CD or MP3 player. Similar in concept to a player piano, the PianoDisc or iQ systems allow pianos to "play themselves" when the software interprets a certain file format. Such additions are quite expensive, often doubling the cost of a piano. These pianos are available in both upright and grand.

Keyboard[link]

Keyboard of a grand piano

Almost every modern piano has 52 white keys and 36 black keys for a total of 88 keys (seven octaves plus a minor third, from A₀ to C₈). Many older pianos only have 85 keys (seven octaves from A₀ to A₇). The highest-quality piano manufacturers extend the range further in one or both directions.

Some Bösendorfer pianos, for example, extend the normal range down to F₀, with one other model going as far as a bottom C₀, making a full eight octave range. These extra keys are sometimes hidden under a small hinged lid that can cover the keys to prevent visual disorientation for pianists unfamiliar with the extra keys. On others, the colors of the extra white keys are reversed (black instead of white).

The extra keys are added primarily for increased resonance from the associated strings; that is, they vibrate sympathetically with other strings whenever the damper pedal is depressed and thus give a fuller tone. Only a very small number of works composed for piano actually use these notes. More recently, the Stuart and Sons company has also manufactured extended-range pianos, with the first 102 key piano. On their instruments, the frequency range extends from C₀ to F₈, which is the widest practical range for the acoustic piano. The extra keys are the same as the other keys in appearance.

Small studio upright acoustical pianos with only 65 keys have been manufactured for use by roving pianists. Known as gig pianos and still containing a cast iron harp (frame), these are comparatively lightweight and can be easily transported to and from engagements by only two people. As their harp is longer than that of a spinet or console piano, they have a stronger bass sound that to some pianists is well worth the trade-off in range that a reduced key-set offers.

The toy piano manufacturer Schoenhut started manufacturing both grands and uprights with only 44 or 49 keys, and shorter distance between the keyboard and the pedals. These pianos are true pianos with action and strings. The pianos were introduced to their product line in response to numerous requests in favor of it.

Pianos have been built with alternative keyboard systems, e.g., the Jankó keyboard.

Pedals[link]

Standard pedals[link]

Piano pedals from left to right: una corda, sostenuto and sustain pedal

Pianos have had pedals, or some close equivalent, since the earliest days. (In the 18th century, some pianos used levers pressed upward by the player's knee instead of pedals.) Most grand pianos in the US have three pedals: the soft pedal (una corda), sostenuto, and sustain pedal (from left to right, respectively), while in Europe, the standard is two pedals: the soft pedal and the sustain pedal. Most modern upright pianos also have three pedals: soft pedal, practice pedal and sustain pedal, though older or cheaper models may lack the practice pedal. In Europe the standard for upright pianos is two pedals: the soft and the sustain pedals.

Notations used for the sustain pedal in sheet music

The sustain pedal (or, damper pedal) is often simply called "the pedal", since it is the most frequently used. It is placed as the rightmost pedal in the group. It lifts the dampers from all keys, sustaining all played notes. In addition, it alters the overall tone by allowing all strings, including those not directly played, to reverberate.

The soft pedal or una corda pedal is placed leftmost in the row of pedals. In grand pianos it shifts the entire action/keyboard assembly to the right (a very few instruments have shifted left) so that the hammers hit two of the three strings for each note. In the earliest pianos whose unisons were bichords rather than trichords, the action shifted so that hammers hit a single string, hence the name una corda, or 'one string'. The effect is to soften the note as well as change the tone. In uprights this action is not possible; instead the pedal moves the hammers closer to the strings, allowing the hammers to strike with less kinetic energy. This produces a slightly softer sound, but no change in timbre.

On grand pianos, the middle pedal is a sostenuto pedal. This pedal keeps raised any damper already raised at the moment the pedal is depressed. This makes it possible to sustain selected notes (by depressing the sostenuto pedal before those notes are released) while the player's hands are free to play additional notes (which aren't sustained). This can be useful for musical passages with pedal points and other otherwise tricky or impossible situations.

On many upright pianos, the middle pedal is called the "practice" or celeste pedal. This drops a piece of felt between the hammers and strings, greatly muting the sounds. This pedal can be shifted while depressed, into a "locking" position.

There are also non-standard variants. On some pianos (grands and verticals), the middle pedal can be a bass sustain pedal: that is, when it is depressed, the dampers lift off the strings only in the bass section. Players use this pedal to sustain a single bass note or chord over many measures, while playing the melody in the treble section. On the Stuart and Sons piano as well as the largest Fazioli piano, there is a fourth pedal to the left of the principal three. This fourth pedal works in the same way as the soft pedal of an upright piano, moving the hammers closer to the strings.^[14]

Unusual pedals[link]

An upright pedal piano by Challen

The rare transposing piano (such as owned by Irving Berlin) has a middle pedal that functions as a clutch that disengages the keyboard from the mechanism, enabling the keyboard to be moved to the left or right with a lever. The entire action of the piano is thus shifted to allow the pianist to play music written in one key so that it sounds in a different key.

There were three piano companies to include extra pedals other than the standard two or three. Two of these companies offered a piano with four pedals (Crown and Schubert Piano Co.), and Wing and Son of New York offered a five-pedal piano from approximately 1893 through the 1920s. There is no mention of the company past the 1930s. Labeled left to right the pedals are Mandolin, Orchestra, Expression, Soft, and Forte (Sustain). The Mandolin pedal produces a sound similar to a vibrato feel by bouncing a set of small hammers against the strings, enabling the piano to mimic a mandolin, guitar, banjo, zither and harp. The Orchestra (Orch) pedal used a similar approach, lowering a set of metal-tipped felt strips in between the hammers and the strings. This extended the life of the hammers when the Orch pedal was used, a good idea for practicing, and created an echo-like sound that mimicked playing in an orchestral hall.^[15][16]

The pedalier piano, or pedal piano, is a rare type of piano that includes a pedalboard, enabling bass register notes to be played with the feet, as is standard on the organ. There are two types of pedal piano: the pedal board may be an integral part of the instrument, using the same strings and mechanism as the manual keyboard, or, less frequently, it may consist of two independent pianos (each with its separate mechanics and strings), which are placed one above the other, a regular piano played by the hands and a bass-register piano played by the feet. This was developed primarily as a practice instrument for organists, although there is a small repertoire written specifically for the instrument.

Construction[link]

Many parts of a piano are made of materials selected for strength and longevity. This is especially true of the outer rim. It is most commonly made of hardwood, typically maple or beech, and its massiveness serves as an essentially immobile object from which the flexible soundboard can best vibrate. According to Harold A. Conklin,^[17] the purpose of a sturdy rim is so that "the vibrational energy will stay as much as possible in the soundboard instead of dissipating uselessly in the case parts, which are inefficient radiators of sound."

Yet Bösendorfer, the Austrian manufacturer of high quality pianos, constructs their rim from spruce, the very same wood that the soundboard is made from. Their idea is to concertedly involve the cabinet in the projection and coloration of sound. The loss of energy into the Bösendorfer case alters the instrument's tone, giving it perhaps less power but a complex and unusually resonant sound.

View from below of a 182-cm grand piano. In order of distance from viewer: softwood braces, tapered soundboard ribs, soundboard. The metal rod at lower right is a humidity control device.

The finest hardwood rims are made by laminating thin (hence flexible) strips of hardwood, bending them to the desired shape immediately after the application of glue. This system was developed by Theodore Steinway in 1880. The thick wooden posts on the underside (grands) or back (uprights) of the piano stabilize the rim structure, and are made of softwood for stability. The requirement of structural strength, fulfilled by stout hardwood and thick metal, makes a piano heavy; even a small upright can weigh 136 kg (300 lb), and the Steinway concert grand (Model D) weighs 480 kg (990 lb). The largest piano built, the Fazioli F308, weighs 691 kg (1520 lb).

The pinblock, which holds the tuning pins in place, is another area where toughness is important. It is made of hardwood, (typically hard maple or beech), and is laminated for strength, stability and longevity. Piano strings (also called piano wire), which must endure years of extreme tension and hard blows, are made of high carbon steel. They are manufactured to vary as little as possible in diameter, since all deviations from uniformity introduce tonal distortion. The bass strings of a piano are made of a steel core wrapped with copper wire, to increase their mass whilst retaining flexibility. If all strings throughout the piano's compass were individual (monochord), the massive bass strings would overpower the upper ranges. Makers compensate for this with the use of double (bichord) strings in the tenor and triple (trichord) strings throughout the treble.

Cast iron plate of a grand piano

The plate (harp), or metal frame, of a piano is usually made of cast iron. It is advantageous for the plate to be very massive. Since the strings vibrate from the plate at both ends, vibrations absorbed by the plate result in energy loss to the desired (efficient) sound transmission channel, namely the bridge and the soundboard. While some manufacturers use cast steel in their plates, most prefer cast iron. Cast iron is easy to cast and machine, has flexibility sufficient for piano use, is much more resistant to deformation than steel, and is especially tolerant of compression. Plate casting is an art, since dimensions are crucial and the iron shrinks about one percent during cooling.

Including an extremely large piece of metal in a piano is potentially an aesthetic handicap. Piano makers overcome this by polishing, painting, and decorating the plate. Plates often include the manufacturer's ornamental medallion. In an effort to make pianos lighter, Alcoa worked with Winter and Company piano manufacturers to make pianos using an aluminum plate during the 1940s. Aluminum piano plates were not widely accepted, and were discontinued.

The numerous grand parts and upright parts of a piano action are generally hardwood, e.g., maple, beech, or hornbeam. However, since WWII, makers have used some plastics. Early plastics were incorporated into some pianos in the late 1940s and 1950s, but proved disastrous because they lost strength after a few decades of use. Starting in 1961, the New York branch of the Steinway firm incorporated Teflon, a synthetic material developed by DuPont, for some parts of its Permafree grand action in place of cloth bushings, but abandoned the experiment in 1982 due to excessive friction and a "clicking" that developed over time. Teflon is "humidity stable" whereas the wood adjacent to the Teflon swells and shrinks with humidity changes, causing problems. More recently, the Kawai firm built pianos with action parts made of more modern materials such as carbon fiber reinforced plastic, and the piano parts manufacturer Wessell, Nickel and Gross has launched a new line of carefully engineered composite parts. Thus far these parts have performed reasonably, but it will take decades to know if they equal the longevity of wood.

Strings of a grand piano

In all but the poorest pianos the soundboard is made of solid spruce (that is, spruce boards glued together along the side grain). Spruce's high ratio of strength to weight minimizes acoustic impedance while offering strength sufficient to withstand the downward force of the strings. The best piano makers use quarter-sawn, defect-free spruce of close annular grain, carefully seasoning it over a long period before fabricating the soundboards. This is the identical material that is used in quality acoustic guitar soundboards. Cheap pianos often have plywood soundboards.

In the early years of piano construction, keys were commonly made from sugar pine. Today they are likely to be made of spruce or basswood. Spruce is typically used in high-quality pianos. The black keys were traditionally made from ebony and the white keys were covered with strips of ivory, but since ivory-yielding species are now endangered and protected by treaty, plastics are now almost exclusively used. Also, ivory tends to chip more easily than plastic. Legal ivory can still be obtained in limited quantities. The Yamaha firm invented a plastic called "Ivorite" that they claim mimics the look and feel of ivory; it has since been imitated by other makers.

Care and maintenance[link]

The piano at the social center in the 19th century (Moritz von Schwind, 1868). The man at the piano is Franz Schubert.

Pianos need regular tuning to keep them on pitch, which is usually the internationally recognized standard concert pitch of A4 = 440 Hz. The hammers of pianos are voiced to compensate for gradual hardening, and other parts also need periodic regulation. Aged and worn pianos can be rebuilt or reconditioned. Often, by replacing a great number of their parts, they can perform as well as new pianos. Older pianos are often more settled and produce a warmer tone.^{[citation needed]}

Piano moving should be done by trained piano movers using adequate manpower and the correct equipment for any particular piano's size and weight.^{[citation needed]} Pianos are heavy yet delicate instruments. Over the years, professional piano movers have developed special techniques for transporting both grands and uprights, which prevent damage to the case and to the piano's mechanics.

Tuning[link]

A piano tuner

The relationship between two pitches, called an interval, is the ratio of their absolute frequencies. Two different intervals are perceived as the same when the pairs of pitches involved share the same frequency ratio. The easiest intervals to identify, and the easiest intervals to tune, are those that are just, meaning they have a simple whole-number ratio. The term temperament refers to a tuning system that tempers the just intervals (usually the perfect fifth, which has the ratio 3:2) to satisfy another mathematical property; in equal temperament, a fifth is tempered by narrowing it slightly, achieved by flattening its upper pitch slightly, or raising its lower pitch slightly. A temperament system is also known as a set of bearings.

Tempering an interval causes it to beat, which is a fluctuation in perceived sound intensity due to interference between close (but unequal) pitches. The rate of beating is equal to the frequency differences of any harmonics that are present for both pitches and that coincide or nearly coincide.

Piano tuning is the act of adjusting the tensions of the piano's strings, thereby aligning the intervals among their tones so that the instrument is in tune. The meaning of the term in tune in the context of piano tuning is not simply a particular fixed set of pitches. Fine piano tuning carefully assesses the interaction among all notes of the chromatic scale, different for every piano, and thus requires slightly different pitches from any theoretical standard. Pianos are usually tuned to a modified version of the system called equal temperament (see Piano key frequencies for the theoretical piano tuning). In all systems of tuning, each pitch is derived from its relationship to a chosen fixed pitch, usually A440.^[18]

Role[link]

The piano is a crucial instrument in Western classical music, jazz, film, television, and most other complex western musical genres. A large number of composers are proficient pianists—and because the piano keyboard offers an easy means of complex melodic and harmonic interplay—the piano is often used as a tool for composition.

See also[link]

	Piano portal
	Music portal

Notes[link]

References[link]

• Encyclopædia Britannica (available online by subscription) also includes much information on the piano. In the 1988 edition, the primary article can be found in "Musical Instruments".
• Giraffes, black dragons, and other pianos: a technological history from Cristofori to the modern concert grand by Edwin M. Good (1982, second ed., 2001, Stanford, Calif.: Stanford University Press) is a standard reference on the history of the piano.
• The Early Pianoforte by Stewart Pollens (1995, Cambridge: Cambridge University Press) is an authoritative work covering the ancestry of the piano, its invention by Cristofori, and the early stages of its subsequent evolution.
• The New Grove Dictionary of Music and Musicians (available online by subscription), contains a wealth of information. Main article: "Pianoforte".
• The Piano Book by Larry Fine (4th ed. Jamaica Plain, Massachusetts: Brookside Press, 2001; ISBN 1-929145-01-2) gives the basics of how pianos work, and a thorough evaluative survey of current pianos and their manufacturers. It also includes advice on buying and owning pianos.

Further reading[link]

• Banowetz, Joseph; Elder, Dean (1985). The pianist's guide to pedaling. Bloomington: Indiana University Press. ISBN 0-253-34494-8. 
• Carhart, Thad (2002) [2001]. The Piano Shop on the Left Bank. New York: Random House. ISBN 0-375-75862-3. 
• Fine, Larry; Gilbert, Douglas R (2001). The Piano Book: Buying and Owning a New or Used Piano (4th edition). Jamaica Plain, MA: Brookside Press. ISBN 1-929145-01-2. http://pianobook.com. 
• Lelie, Christo (1995). Van Piano tot Forte (The History of the Early Piano). Kampen: Kok-Lyra.  (Dutch)
• Loesser, Arthur (1991) [1954]. Men, Women, and Pianos: A Social History. New York: Dover Publications. 
• Parakilas, James (1999). Piano roles : three hundred years of life with the piano. New Haven, Connecticut: Yale University Press. ISBN 0-300-08055-7. 
• Reblitz, Arthur A. (1993). Piano Servicing, Tuning and Rebuilding: For the Professional, the Student, and the Hobbyist. Vestal, NY: Vestal Press. ISBN 1-879511-03-7. 
• Schejtman, Rod (2008). Music Fundamentals. The Piano Encyclopedia. ISBN 978-987-25216-2-2. http://www.pianoencyclopedia.com. 

External links[link]

Find more about piano on Wikipedia's sister projects:
	Definitions and translations from Wiktionary
	Images and media from Commons
	Learning resources from Wikiversity
	News stories from Wikinews
	Quotations from Wikiquote
	Source texts from Wikisource
	Textbooks from Wikibooks

• History of the Piano Forte, Association of Blind Piano Tuners, UK
• The Frederick Historical Piano Collection
• The Pianofortes of Bartolomeo Cristofori, Heilbrunn Timeline of Art History, The Metropolitan Museum of Art

Christina Perri
Christina Perri in an interview
Background information
Birth name	Christina Judith Perri
Born	(1986-08-19) August 19, 1986 (age 25)
Origin	Philadelphia, Pennsylvania, U.S.
Genres	Pop rock, piano rock, alternative rock, soul
Occupations	Singer-songwriter, guitarist, pianist
Instruments	Vocals, piano, guitar
Years active	2010–present
Labels	Atlantic
Website	www.christinaperri.com

Christina Judith Perri (born August 19, 1986)^[1][2] is an American singer-songwriter and musician from Philadelphia. Her song "Jar of Hearts" charted in the United States after it was featured on the Fox television show So You Think You Can Dance in 2010. Rolling Stone named her the "Band of the Week" on October 26, 2010.^[3] On May 10, 2011, Perri's "Jar of Hearts" was featured on Glee (Season 2, Episode 20 "Prom Queen").^[4] Also, on June 27, 2011, Perri's "Jar of Hearts" was featured on Switched at Birth (Season 1, Episode 4 "Dance Amongst Daggers"). One of her songs, "A Thousand Years", has been in the Twilight saga movie Breaking Dawn.

Early life[link]

Perri grew up in Bensalem, Pennsylvania (a suburb of Philadelphia) with her older brother, Nick Perri, who formerly played guitar with Shinedown, Silvertide, Perry Farrell and Matt Sorum.^[5] Her father is from Italy.^[6] She attended Archbishop Ryan High School as a member of the class of 2004.^[7] She taught herself how to play guitar as a 16-year-old by watching a videotape of Shannon Hoon from the group Blind Melon performing on VH1.^[3]

Career[link]

Early career[link]

Perri moved to Los Angeles on her 21st birthday. Later that year she got married and began to produce music videos. She divorced 18 months later and moved back to Philadelphia by the end of 2009; during this time she wrote "Jar of Hearts". She moved back to Los Angeles, waitressing at the Melrose Cafe during the day and recording at night.^[3][8]

[edit] 2010–present: Lovestrong.

Perri's song "Jar of Hearts" was featured on So You Think You Can Dance during the June 30, 2010 show.^[9] It was featured in performance by Billy Bell and Kathryn McCormick.^[10] Perri's friend Keltie Colleen passed the song to show choreographer Stacey Tookey; Perri and Colleen watched the performance in the audience.^[9] Following its exposure on the show, "Jar of Hearts" sold 48,000 digital copies, debuting on the Billboard Hot 100 at #63 and reaching #28 on Billboard's Hot Digital Songs.^[10] Within a month, it sold more than 100,000 copies.^[8] Then, her music video for "Jar of Hearts" landed on the VH1 top 20 music video countdown.

Shortly after, Perri made her debut on national day time and prime time television, performing the song live on the July 10, 2010 episode of The Early Show on CBS as well as the July 15, 2010 episode of So You Think You Can Dance^[8] Perri signed a deal with Atlantic Records on July 21, 2010.^[11] Roadrunner Records continue to promote "Jar of Hearts" on the radio.^[12] Perri appeared on the Tonight Show with Jay Leno on July 29, 2010 and Conan on December 7, 2010 where she played "Jar of Hearts." In addition, "Jar of Hearts" was on the show Pretty Little Liars. "Arms" was also in the ABC Family movie Teen Spirit. Perri recorded an EP named The Ocean Way Sessions that was released on November 9, 2010.^[13]

Perri singing "Distance" (left) and "Jar of Hearts" (right) at the lovestrong. tour in San Juan, Puerto Rico.

Perri's debut album is titled lovestrong. and was released on May 10, 2011. It follows the release of "Arms", its lead single, released on March 15. She appeared on Late Show with David Letterman, playing her song "Arms." "Arms" was used in the August 26, 2011 episode of The Bold and the Beautiful and has also been used in TV spots for the Fall 2011 season of Investigation Discovery's show "Disappeared."

Perri's single, "A Thousand Years," appeared on The Twilight Saga: Breaking Dawn's movie soundtrack.

On November 1, 2011 Perri appeared on ABC's Dancing With The Stars Results show to perform her song "Arms". On 13 November 2011, she also performed "Jar of Hearts" on the BBC's Strictly Come Dancing results show. On February 19, she performed "Jar of Hearts" in the pre-fight buildup to Vitali Klitschko vs. Derek Chisora World Heavyweight Championship boxing contest in Munich.

On 29th January 2012, Perri performed Jar of Hearts live on UK ITV's Dancing on Ice show, with Jayne Torvill and Christopher Dean in a specially choreographed routine.

She will be joining Jason Mraz in his tour across continental North America in 2012. Perri also announced that she will be releasing her second studio album in Spring 2013.

On 22nd April 2012, Perri performed live on Australia's Dancing with the Stars.

Discography[link]

EP[link]

• The Ocean Way Sessions (2010)

Albums[link]

• Lovestrong (2011)

References[link]

Morton Feldman (January 12, 1926 – September 3, 1987) was an American composer, born in New York City.

A major figure in 20th century music, Feldman was a pioneer of indeterminate music, a development associated with the experimental New York School of composers also including John Cage, Christian Wolff, and Earle Brown. Feldman's works are characterized by notational innovations that he developed to create his characteristic sound: rhythms that seem to be free and floating; pitch shadings that seem softly unfocused; a generally quiet and slowly evolving music; recurring asymmetric patterns. His later works, after 1977, also begin to explore extremes of duration.

Biography[link]

Feldman was born in Brooklyn, New York City into a family of Russian-Jewish immigrants from Kiev. His father was a manufacturer of children's coats.^[1][2] As a child he studied piano with Vera Maurina Press, who, according to the composer himself, instilled in him a "vibrant musicality rather than musicianship."^[3] Feldman's first composition teachers were Wallingford Riegger, one of the first American followers of Arnold Schoenberg, and Stefan Wolpe, a German-born Jewish composer who studied under Franz Schreker and Anton Webern. Feldman and Wolpe spent most of their time simply talking about music and art.^[4]

In early 1950 Feldman went to hear the New York Philharmonic give a performance of Anton Webern's Symphony, op. 21. After this work, the orchestra was going to perform a piece by Sergei Rachmaninoff, and Feldman left immediately before that, disturbed by the audience's disrespectful reaction to Webern's work.^[5] In the lobby he met John Cage, who was at the concert and had also decided to step out.^[6] The two composers quickly became good friends, with Feldman moving into the apartment on the second floor of the building Cage lived in. Through Cage, he met painters Richard Lippold (who had a studio next door), Sonia Sekula, Robert Rauschenberg, and others, and composers such as Henry Cowell, Virgil Thomson, and George Antheil.^[7]

With encouragement from Cage, Feldman began to write pieces that had no relation to compositional systems of the past, such as the constraints of traditional harmony or the serial technique. He experimented with non-standard systems of musical notation, often using grids in his scores, and specifying how many notes should be played at a certain time, but not which ones. Feldman's experiments with the use of chance in his composition in turn inspired John Cage to write pieces like the Music of Changes, where the notes to be played are determined by consulting the I Ching.

Feldman was commissioned to compose the score for Jack Garfein's 1961 film, Something Wild. However, after hearing the music for the opening scene, in which a character (played by Carroll Baker, incidentally also Garfein's wife) is raped, the director promptly withdrew his commission, opting to enlist Aaron Copland instead. The reaction of the startled director was said to be, "My wife is being raped and you write celesta music?"^[8]

Through Cage, Feldman met many other prominent figures in the New York arts scene, among them Jackson Pollock, Philip Guston and Frank O'Hara. He found inspiration in the paintings of the abstract expressionists,^[9] and throughout the 1970s wrote a number of pieces around twenty-minutes in length, including Rothko Chapel (1971, written for the building of the same name, which houses paintings by Mark Rothko) and For Frank O'Hara (1973). In 1977, he wrote the opera Neither with words by Samuel Beckett.

In 1973, at the age of 47, Feldman became the Edgard Varèse Professor (a title of his own devising) at the University at Buffalo. Prior to that time, Feldman had earned his living as a full-time employee at the family textile business in New York's garment district.

Later, he began to produce his very long works, often in one continuous movement, rarely shorter than half an hour in length and often much longer. These works include Violin and String Quartet (1985, around 2 hours), For Philip Guston (1984, around four hours) and, most extreme, the String Quartet II (1983, which is over six hours long without a break.) Typically, these pieces maintain a very slow developmental pace (if not static) and tend to be made up of mostly very quiet sounds. Feldman said himself that quiet sounds had begun to be the only ones that interested him. In a 1982 lecture, Feldman noted: "Do we have anything in music for example that really wipes everything out? That just cleans everything away?"

Feldman married the Canadian composer Barbara Monk shortly before his death. He died from pancreatic cancer in 1987 at his home in Buffalo, New York, after fighting for his life for three months.

Works[link]

See: List of compositions by Morton Feldman

Notable students[link]

References[link]

• Feldman, Morton. 1968. Give My Regards to Eighth Street, Artnews Annual. Included in Give my regards to Eighth Street: Collected Writings of Morton Feldman (2000), The Music of Morton Feldman, and elsewhere.
• Gagne, Cole, and Caras, Tracey. 1982. Interview with Morton Feldman. In: Soundpieces: Interviews with American Composers, 164–177. Metuchen, New Jersey: The Scarecrow Press Inc, 1982. Available online.
• Hirata, Catherin. 2002. Morton Feldman. In: Sitsky, Larry, ed. 2002. Music of the Twentieth-century Avant-garde. Greenwood Publishing Group.
• Revill, David. 1993. The Roaring Silence: John Cage – a Life. Arcade Publishing. ISBN 1-55970-220-6, ISBN 978-1-55970-220-1.
• Ross, Alex. 2006. American Sublime. The New Yorker, June 19, 2006. Available online.
• Zimmerman, Walter, ed. 1985. Morton Feldman Essays. Kerpen: Beginner.

Further reading[link]

• Eldred, Michael The Quivering of Propriation: A Parallel Way to Music, Section II.4.4 A musical subversion of harmonically logical time (Feldman) www.arte-fact.org 2010
• Feldman, Morton. Morton Feldman Says. Chris Villars, ed. London: Hyphen Press, 2006.
• Feldman, Morton. Morton Feldman in Middelburg. Lectures and Conversations. R. Mörchen, ed. Cologne: MusikTexte, 2008.
• Feldman, Morton. Give my regards to Eighth Street: Collected Writings of Morton Feldman. B.H. Friedman, ed. Cambridge, MA: Exact Change, 2000.
• Gareau, Philip. La musique de Morton Feldman ou le temps en liberté. Paris: L'Harmattan, 2006.
• Hirata, Catherin (Winter 1996). "The Sounds of the Sounds Themselves: Analyzing the Early Music of Morton Feldman", Perspectives of New Music 34, no.1, 6-27.
• Herzfeld, Gregor. "Historisches Bewusstsein in Morton Feldmans Unterrichtsskizzen", Archiv für Musikwissenschaft Vol. 66, no. 3, (Summer 2009), 218-233.
• Lunberry, Clark. “Departing Landscapes: Morton Feldman's String Quartet II and Triadic Memories.” SubStance 110: Vol. 35, Number 2 (Summer 2006): 17-50. (Available at http://www.cnvill.net/mftexts.htm [#105 on the list])

External links[link]

Wikiquote has a collection of quotations related to: Morton Feldman

• Morton Feldman Page
• Morton Feldman Photographs, 1939-1987 from UBdigit - Digital Collections - University at Buffalo Libraries
• Jan Williams Photos of Morton Feldman, 1974-1979 from UBdigit - Digital Collections - University at Buffalo Libraries
• Morton Feldman in conversation with Thomas Moore
• Morton Feldman: Structures for String Quartet (1951) by Lejaren Hiller
• GregSandow.com: Feldman Draws Blood Village Voice, June 16, 1980
• Morton Feldman profile at New Albion Records
• The New Yorker: The Critics at Large
• Morton Feldman at Pytheas Center for Contemporary Music
• (French) A biography of Morton Feldman, from IRCAM's website.

Listening[link]

• Art of the States: Morton Feldman three works by the composer
• UbuWeb: Morton Feldman featuring The King of Denmark
• Epitonic.com: Morton Feldman featuring tracks from Only – Works for Voice and Instruments
• In Conversation with John Cage, 1966, Part 1
• In Conversation with John Cage, 1966, Part 2
• In Conversation with John Cage, 1966, Part 3
• In Conversation with John Cage, 1966, Part 4
• In Conversation with John Cage, 1966, Part 5

Ariana Grande
Grande at the film premiere of Harry Potter and the Deathly Hallows – Part 2 in July 2011
Background information
Birth name	Ariana Grande-Butera
Born	(1993-06-26) June 26, 1993 (age 19) Boca Raton, Florida, U.S.
Genres	Pop
Occupations	Actress, singer, dancer
Years active	2008–present
Labels	Universal Republic
Website	arianagrande.info[1]

Ariana Grande-Butera^[2][3] (born June 26, 1993^[4][5]) is an American actress, singer, and dancer. She made her performance debut on Broadway at age 15. Recently, she has gained attention for her role as Cat Valentine on the Nickelodeon sitcom Victorious.

Early life[link]

Grande was born and raised in Boca Raton, Florida.^[6] She is of Italian descent, half Sicilian, half Abruzzese.^[7]

Career[link]

Grande at the Tribeca Film Festival in 2010

In 2008, Grande played the role of Charlotte in the musical 13 on Broadway, for which she won a National Youth Theatre Association Award. When she joined the musical, Grande left her high school, North Broward Preparatory School, but continued to be enrolled. The school sent materials to her for study with tutors.^[8] She played the role of Miriam in the first reading of the forthcoming musical Cuba Libre composed by Desmond Child. Grande teaches music and dance to children in South Africa each year as a member of Broadway in South Africa.^[6][9]

Grande plays the character Cat Valentine on the Nickelodeon television show Victorious, which premiered in March 2010.

In May/June 2011, she was featured in Greyson Chance's music video for the single "Unfriend You", playing Chance's ex-girlfriend.

Grande is currently working on her debut album, due for a late 2012 release.^[10]

Stage and screen credits[link]

Television

Broadway

Music video

Discography[link]

Singles[link]

Album appearances[link]

References[link]

External links[link]

Wikimedia Commons has media related to: Ariana Grande

• Official website
• Ariana Grande at the Internet Movie Database
• Ariana Grande at the Internet Broadway Database

Alfred Brendel, 2010

Alfred Brendel KBE (born 5 January 1931) is an Austrian pianist, born in Czechoslovakia and a resident of the United Kingdom. He is also a poet and author.

Biography[link]

Brendel was born in Wiesenberg, Czechoslovakia, now Loučná nad Desnou, Czech Republic, to a non-musical family. They moved to Zagreb when Brendel was six, and later to Graz, where they lived during World War II, towards the end of which the 14-year old Brendel was sent to Yugoslavia to dig trenches. However, he developed frostbite and was taken to hospital. Brendel began piano lessons when he was six with Sofija Deželić, and at 14 he studied piano with Ludovica von Kaan and composition in the Graz Conservatory for the next two years, but otherwise had little formal music education.

After the war, Brendel composed music, as well as continuing to play the piano and to paint. However, he never had more formal piano lessons and although he attended masterclasses with Edwin Fischer and Eduard Steuermann, he was largely self-taught.