0 a type of modern music originally developed by African-Americans, with a rhythm in which the strong notes often come before the beat. Jazz is usually improvised (= invented as it is played).
1 a type of music of African-American origin with a strong rhythm in which the players improvise (= invent music that has not been written)
I've never really gone in for classical music, but I love jazz.
The famous jazz musician, Duke Ellington, was a composer, arranger and pianist.
The drums and double bass usually form the rhythm section of a jazz group.
The African-American musicians in New Orleans took these different kinds of music and mixed them with African rhythms to make a new music – jazz.
