Noun
jazz fusion (uncountable)
(music) A style of jazz music that is influenced by rock music, funk, rhythm and blues and other styles.
There are a few things that I will hopefully be credited for as a pioneer. One is my four-mallet playing. Another one is the starting what was first called jazz rock in 1967 when I started my first band, later became jazz fusion by the 1970s. Gary Burton
Jazz fusion often uses mixed meters, odd time signatures, syncopation, complex chords and harmonies. Source: Internet
Jazz fusion was also popular in Japan, where the band Casiopea released over thirty fusion albums. Source: Internet