It would be an understatement to say that there was a fair amount of variety on this set. Drummer Tony Williams is heard in two duets with keyboardist Jan Hammer, with a quartet also including keyboardist Herbie Hancock, Tom Scott (who unfortunately sticks to lyricon) and bassist Stanley Clarke, and he welcomes rock guitarist Ronnie Montrose, keyboardist Brian Auger, guitarist George Benson, Hammer and tenorman Michael Brecker on other tracks. Much of this music is closer to R&B than to jazz, although there are many strong moments. But the most interesting selection is certainly “Morgan’s Motion” which matches Williams with pianist Cecil Taylor in a powerful (and completely atonal) collaboration. – Scott Yanow