フリー・ジャズ
In the late 1950s and early 1960s, the free jazz movement coalesced around such important (and disparate) figures as Cecil Taylor, Sun Ra, Ornette Coleman, and John Coltrane, as well as many lesser-known figures such as Joe Maneri and Joe Harriott. Free jazz allowed for radical improvised departures from the harmonic and rhythmic material of the composition – for instance, by permitting performers to ignore conventional repeating song-structures. Such music often seemed far removed from the preceding jazz tradition, even though it almost always preserved one or more central elements of that tradition while abandoning others.