A mile is a unit of length, most commonly 5,280 feet (1,760 yards, or about 1,609 metres). The mile of 5,280 feet is sometimes called the statute mile or land mile to distinguish it from the nautical mile (1,852 metres, about 6,076.1 feet). There have also been many historical miles and similar units in other systems that may be translated into English as miles; they have varied in length from 1 to 15 kilometres.

The exact length of the land mile varied slightly among English-speaking countries until an international agreement in 1959 established the yard as exactly 0.9144 metres, giving a mile of exactly 1,609.344 metres. The United States adopted this international mile for most purposes, but retained the pre-1959 mile for some land-survey data, terming it the US survey mile. In the US, statute mile formally refers to the survey mile, about 3.219 mm (⅛ inch) longer than the international mile (the international mile is exactly 0.0002% less than the US survey mile).

Use of the mile as a unit of measurement is now largely confined to the United Kingdom, the United States, and Canada.

Music is an art form whose medium is sound and silence. Its common elements are pitch (which governs melody and harmony), rhythm (and its associated concepts tempo, meter, and articulation), dynamics, and the sonic qualities of timbre and texture. The word derives from Greek μουσική (mousike; "art of the Muses").

The creation, performance, significance, and even the definition of music vary according to culture and social context. Music ranges from strictly organized compositions (and their recreation in performance), through improvisational music to aleatoric forms. Music can be divided into genres and subgenres, although the dividing lines and relationships between music genres are often subtle, sometimes open to individual interpretation, and occasionally controversial. Within "the arts", music may be classified as a performing art, a fine art, and auditory art. There is also a strong connection between music and mathematics.

To many people in many cultures, music is an important part of their way of life. Ancient Greek and Indian philosophers defined music as tones ordered horizontally as melodies and vertically as harmonies. Common sayings such as "the harmony of the spheres" and "it is music to my ears" point to the notion that music is often ordered and pleasant to listen to. However, 20th-century composer John Cage thought that any sound can be music, saying, for example, "There is no noise, only sound." Musicologist Jean-Jacques Nattiez summarizes the relativist, post-modern viewpoint: "The border between music and noise is always culturally defined—which implies that, even within a single society, this border does not always pass through the same place; in short, there is rarely a consensus ... By all accounts there is no single and intercultural universal concept defining what music might be."

Greg Koch (born June 14, 1955 in Bethesda, Maryland) is a former American football tackle and guard who played eleven seasons in the National Football League, mainly with the Green Bay Packers. In 2010, Koch was inducted into the Green Bay Packers Hall of Fame. Koch was also inducted into the University of Arkansas Sports Hall of Honor. He is a licensed attorney and a part time radio personality on SportsTalk 790 KBME in Houston, Texas

Koch was a four year letterman at the University of Arkansas. He was a starter for the Arkansas Razorbacks were he was part of the offensive line that blocked for the school record 3,523 rushing yards in 1975. That same season Koch was a First-team All-SWC. Koch played in the All-America Bowl in Tampa, Flida after the 1976 season. Koch was named the Razorback 1970s All-Decade team with offensive linemen R. C. Thielemann, Leotis Harris George Stewart and Greg Kolenda. No one is quite sure whether the urban legend that Koch and Thielemann rode with outlaw motorcycle clubs during the summer while attending Arkansas is in fact true. The two did however, own and operate a tattoo parlor long before it became fashionable.

Pat Martino (born August 25, 1944) is an Italian-American jazz guitarist and composer within the post bop, fusion, mainstream jazz, soul jazz and hard bop idioms.

Martino was born Pat Azzara in South Philadelphia. He began playing professionally at age 15. Martino played and recorded early in his career with musicians such as Willis Jackson and Eric Kloss. He also worked with many jazz organists, such as Charles Earland, Jack McDuff, Trudy Pitts, Jimmy Smith, Gene Ludwig, Don Patterson, Richard "Groove" Holmes. Throughout the 1960s and 1970s, Martino made many recordings as a sideman and also under his own name.

In 1980, Martino underwent surgery as the result of a nearly fatal brain aneurysm. The surgery left him with amnesia, leaving him, among other things, without some memory of the guitar and his musical career. With the help of friends, computers, and his old recordings, Martino made a recovery [1], and learned to play the guitar again.

His improvisation method, "Conversion to Minor", is often mistakenly thought to be based upon using exclusively minor systems for soloing. In fact, the system involves conceptualising chord progressions in terms of the relative minor chord/scale, but in practice this seems to be more a way for organising the fretboard, rather than justifying playing certain tones in terms of whether they are "correct" or not. Martino's lines contain chromatic notes outside any particular IIm7 chord that might be conceptualised over a chord progression; even in the examples he provides in his books and instructional videos. Indeed, on his bulletin board he has stated that he formulated the system more as a way to explain his playing, rather than as something to use to create music. In his own words, "although the analysis of some of my recorded solos have been referred to as modal, personally I’ve never operated in that way. I’ve always depended upon my own melodic instinct, instead of scale like formulas".

Lester William Polsfuss (June 9, 1915 – August 13, 2009)—known as Les Paul—was an American jazz and country guitarist, songwriter and inventor. He was the inventor of the solid-body electric guitar which made the sound of rock and roll possible. He is credited with many recording innovations. Although he was not the first to use the technique, his early experiments with overdubbing (also known as sound on sound),delay effects such as tape delay, phasing effects and multitrack recording were among the first to attract widespread attention.

His innovative talents extended into his playing style, including licks, trills, chording sequences, fretting techniques and timing, which set him apart from his contemporaries and inspired many guitarists of the present day. He recorded with his wife Mary Ford in the 1950s, and they sold millions of records.

Among his many honors, Paul is one of a handful of artists with a permanent, stand-alone exhibit in the Rock and Roll Hall of Fame. He is prominently named by the music museum on its website as an "architect" and a "key inductee" along with Sam Phillips and Alan Freed.