"Confirmation" is a bebopstandard composed by saxophonistCharlie Parker in 1945. It is known as a challenging number due to its long, complex head and rapid chord changes, which feature an extended cycle of fifths. The harmonic rhythm of "Confirmation" is noted for its speed and intricacy, typical for the bebop era. Though the piece originated in 1945, Parker's first studio recording of the piece was made in July 1953. The first recording of "Confirmation" was made by Dizzy Gillespie at a small group session for Dial Records by producer Ross Russell in February 1946 at which Parker was not present. Five live recordings of Parker performing "Confirmation" are in existence. The musicologist Henry Martin extensively analyses the piece in his 2020 book Charlie Parker, Composer. Martin wrote that "Confirmation" "may be Parker's finest display of compositional skill" and describes it as "combining wit, intricacy, and an originality of construction that Parker was unable to equal again". Gary Giddins describes it as an irresistibly bright and songful piece. Martin Williams, writing in Down Beat Magazine in 1965, described "Confirmation" as a "continuous and linear invention" in contrast to the construction of typical pop or jazz compositions, that skips along beautifully with no repeats. The last eight bars however form a type of repeat to finish the melodic line. Williams praised its ingenious and delightful melody. The piece was rare among Parker compositions in not having been based on or adapted from a pre-existing piece by a different composer. Brian Priestley in his biography of Parker, Chasin' the Bird: The Life and Legacy of Charlie Parker, writes that the first eight, the middle eight and the last eight bars are extremely closely related and finds that "it is instructive how one small difference necessitates another small difference which necessitates yet another small difference" in order to "maintain a perfect balance". Ted Gioia included "Confirmation" in his 2012 analysis of jazz standards, The Jazz Standards: A Guide to the Repertoire. Gioia wrote that he marvels at "a piece that can sound so highly structured and spontaneous at the same time". Gioia describes "Confirmation" and Parker's "Donna Lee" could "almost serve a primer in modern jazz phrase construction". The jazz singerShelia Jordan wrote a vocal accompaniment to "Confirmation". Thelonious Monk would give his prospective piano students "Confirmation" and tell them to learn it in different keys.
