Cannonball Adderley in the context of "Nat Adderley"

In jazz, a bar-line shift is a technique in which, during improvisation, one plays the chord from the measure before, as an anticipation of a chord, or after the given chord, as a delay, either intentionally or as an "accident."

Bar-line shifts may be caused by a novice having lost their place in the chord progression, but is most often attributable to: "(1)...harmonic generalization, as in the case of playing a II to V7 (+5, +9) progression [II-V-I turnaround] as only a V7 (+5, +9); or (2) the player wanted to play the previous chord (though it has already transpired), but was either pausing momentarily (as in taking a breath), and decides to adopt the 'better later than never' attitude." An example of a "very intentional" bar-line shift may be found on Cannonball Adderley's solo on "So What," "in which he deliberately enters and exits the bridge early, causing considerable tension, since the chord of the A section (D-) is one-half step lower than the chord of the bridge (E♭-)." Other notable performers to use this technique include Charlie Parker, Coleman Hawkins, and Pat Metheny.

Kind of Blue is a studio album by American jazz musician Miles Davis, released on August 17, 1959, by Columbia Records. For this album, Davis led a sextet featuring saxophonists John Coltrane and Julian "Cannonball" Adderley, pianist Bill Evans, bassist Paul Chambers, and drummer Jimmy Cobb, with new band pianist Wynton Kelly replacing Evans on "Freddie Freeloader". The album was recorded at Columbia's 30th Street Studio in New York City in two sessions on March 2 and April 22, 1959.

Influenced in part by Evans, who had been a member of the ensemble in 1958 and was called back for this album, Davis departed further from his early hard bop style in favor of greater experimentation with musical modes, as on the title track of his previous album, Milestones (1958). Basing Kind of Blue entirely on modality, Davis gave each performer a set of scales that encompassed the parameters of their improvisation and style and consequently more creative freedom with melodies; Coltrane later expanded on this modal approach in his own solo career.

Josef Erich Zawinul (/ˈzɒvɪnəl/ ZOV-in-əl; 7 July 1932 – 11 September 2007) was an Austrian jazz and jazz fusion keyboardist and composer. First coming to prominence with saxophonist Cannonball Adderley, Zawinul went on to play with Miles Davis and to become one of the creators of jazz fusion, a musical genre that combined jazz with rock. He co-founded the groups Weather Report and The Zawinul Syndicate. He pioneered the use of electric piano and synthesizer, and was named "Best Electric Keyboardist" twenty-eight times by the readers of DownBeat magazine.

The alto saxophone is a member of the saxophone family of woodwind instruments. Saxophones were invented by Belgian instrument designer Adolphe Sax in the 1840s and patented in 1846. The alto saxophone is pitched in the key of E♭, smaller than the B♭ tenor but larger than the B♭ soprano. It is the most common saxophone and is used in popular music, concert bands, chamber music, solo repertoire, military bands, marching bands, pep bands, carnatic music, and jazz (such as big bands, jazz combos, swing music).

The alto saxophone had a prominent role in the development of jazz. Influential jazz musicians who made significant contributions include Don Redman, Jimmy Dorsey, Johnny Hodges, Benny Carter, Charlie Parker, Sonny Stitt, Lee Konitz, Jackie McLean, Phil Woods, Art Pepper, Paul Desmond, and Cannonball Adderley.