the piano doing a montuno [2].  The human voice plays an important role in Salsa music. [1]  http://www.salsa-in-cuba.com/eng/history.html [2]   Is a repeated  syncopated  piano  vamp , often with  chromatic   root  movement. Bitches Brew by Miles Davis (The inspiration for Jazz-Fusion) Jazz-Fusion Jazz Fusion  or J azz Rock , is a