1900-1920
early jazz
1920-1930
swing
1940-1950
bebop
1940-1960
rhythm and blues
1950-1970
hard bop, post bop, avante garde, rock and roll, funk
early jazz beat
dixieland: press rolls on snare drum, bass on 1 and 3
swing beat
swing beat on hi hat, bass four on the floor, snare accents
bebop beat
time on ride cymbal, bass drum dropping bombs, no four on the floor, syncopation between snare and bass, comping
ostinato
a specific phrase that repeats throughout a piece
motif
a rhythm, etc that is repeated in different ways