A ricercar (Italian pronunciation: [rit͡ʃɛrkar], also spelled ricercare, recercar, recercare) is a type of late Renaissance and mostly early Baroque instrumental composition. The term means to search out, and many ricercars serve a preludial function to "search out" the key or mode of a following piece. A ricercar may explore the permutations of a given motif, and in that regard may follow the piece used as illustration. For example, "Ricercar sopra Benedictus" would develop motives from a motet titled "Benedictus." The term is also used to designate an etude or study that explores a technical device in playing an instrument, or singing.

In its most common contemporary usage, it refers to an early kind of fugue, particularly one of a serious character in which the subject uses long note values. However the term has a considerably more varied historical usage.

In the sixteenth century, the word ricercar could refer to several types of compositions. Terminology was flexible, even lax then: whether a composer called an instrumental piece a toccata, a canzona, a fantasia, or a ricercar was clearly not a matter of strict taxonomy but a rather arbitrary decision. Yet ricercars fall into two general types: a predominantly homophonic piece, with occasional runs and passagework, not unlike a toccata; and a sectional work in which each section begins imitatively, usually in a variation form. Examples of both types of ricercars can be found in the works of Girolamo Frescobaldi. The second type of ricercar, the imitative, contrapuntal type, was to prove the more important historically, and eventually developed into the fugue.

Henry Purcell ( /ˈpɜrsəl/; 10 September 1659 (?)– 21 November 1695), was an English composer. Although incorporating Italian and French stylistic elements into his compositions, Purcell's legacy was a uniquely English form of Baroque music. He is generally considered to be one of the greatest English composers; no other native-born English composer approached his fame until Edward Elgar.

Purcell was born in St Ann's Lane Old Pye Street, Westminster. Henry Purcell Senior, whose older brother Thomas Purcell (d. 1682) was also a musician, was a gentleman of the Chapel Royal and sang at the coronation of King Charles II of England. Henry the elder had three sons: Edward, Henry and Daniel. Daniel Purcell (d. 1717), the youngest of the brothers, was also a prolific composer who wrote the music for much of the final act of The Indian Queen after Henry Purcell's death. Henry Purcell's family lived just a few hundred yards west of Westminster Abbey from the year 1659 and onward.

After his father's death in 1664, Purcell was placed under the guardianship of his uncle who showed him great affection and kindness. Thomas was himself a gentleman of His Majesty's chapel, and arranged for Henry to be admitted as a chorister. Henry studied first under Captain Henry Cooke (d. 1672),Master of the Children, and afterwards under Pelham Humfrey (d. 1674), Cooke's successor. Henry was a chorister in the Chapel Royal until his voice broke in 1673, when he became assistant to the organ-builder John Hingston, who held the post of keeper of wind instruments to the King.

Johann Pachelbel ( /ˈjoʊhɑːn ˈpækəlbɛl/ or /ˈpɑːkəlbɛl/;German: [ˈjoːhan ˈpaxɛlbəl], baptised September 1, 1653 – buried March 9, 1706) was a German Baroque composer, organist and teacher, who brought the south German organ tradition to its peak. He composed a large body of sacred and secular music, and his contributions to the development of the chorale prelude and fugue have earned him a place among the most important composers of the middle Baroque era.

Pachelbel's music enjoyed enormous popularity during his lifetime; he had many pupils and his music became a model for the composers of south and central Germany. Today, Pachelbel is best known for the Canon in D, the only canon he wrote – although a true canon at the unison in three parts, it is often regarded more as a passacaglia, and it is in this mode that it has been arranged and transcribed for many different media. In addition to the canon, his most well-known works include the Chaconne in F minor, the Toccata in E minor for organ, and the Hexachordum Apollinis, a set of keyboard variations.

Andrea Gabrieli (1532/1533 – August 30, 1585) was an Italiancomposer and organist of the late Renaissance. The uncle of the somewhat more famous Giovanni Gabrieli, he was the first internationally renowned member of the Venetian School of composers, and was extremely influential in spreading the Venetian style in Italy as well as in Germany.

Details on Gabrieli's early life are sketchy. He was probably a native of Venice, most likely the parish of S. Geremia. He may have been a pupil of Adrian Willaert at St. Mark's in Venice at an early age. There is some evidence that he may have spent some time in Verona in the early 1550s, due to a connection with Vincenzo Ruffo, who worked there as maestro di cappella – Ruffo published one of Gabrieli's madrigals in 1554, and Gabrieli also wrote some music for a Veronese academy. Gabrieli is known to have been organist in Cannaregio between 1555 and 1557, at which time he competed unsuccessfully for the post of organist at St. Mark's.

In 1562 he went to Germany, where he visited Frankfurt am Main and Munich; while there he met and became friends with Orlande de Lassus, one of the most wide-ranging composers of the entire Renaissance, who wrote secular songs in French, Italian, and German, as well as abundant Latin sacred music. This musical relationship proved immensely fruitful for both composers: while Lassus certainly learned from the Venetian, Gabrieli took back to Venice numerous ideas he learned while visiting Lassus in Bavaria, and within a short time was composing in most of the current idioms, including one which Lassus entirely avoided: purely instrumental music.

Jan Pieterszoon Sweelinck (/ˈjɑːn ˈpiːtərsoʊn ˈsweɪlɪŋk/;Deventer, April or May, 1562 – Amsterdam, 16 October 1621) was a Dutch composer, organist, and pedagogue whose work straddled the end of the Renaissance and beginning of the Baroque eras. He was among the first major keyboard composers of Europe, and his work as a teacher helped establish the north German organ tradition.

Sweelinck was born in Deventer, Netherlands, in April or May 1562. He was the eldest son of organist Peter (or Pieter) Swybbertszoon and Elske Jansdochter Sweeling, daughter of a surgeon. Soon after Sweelinck's birth, the family moved to Amsterdam, where from about 1564, Pieter Swybbertszoon served as organist of the Oude Kerk (Sweelinck's paternal grandfather and uncle also were organists). Jan Pieterszoon must have received first lessons in music from his father. Unfortunately, his father died in 1573. He subsequently received general education under Jacob Buyck,Catholic pastor of the Oude Kerk (these lessons stopped in 1578 after the Reformation of Amsterdam and the subsequent conversion to Calvinism; Buyck chose to leave the city). Little is known about his music education after the death of his father; his music teachers may have included Jan Willemszoon Lossy, a little-known countertenor and shawm player at Haarlem, and/or Cornelis Boskoop, Sweelinck's father's successor at the Oude Kerk. If Sweelinck indeed studied in Haarlem, he was probably influenced to some degree by the organists of St.-Bavokerk, Claas Albrechtszoon van Wieringen and Floris van Adrichem, both of whom improvised daily in the Bavokerk.