Like many jazz ensembles, Um came together organically over the course of a matter of years until all of its members were in place. Initially formed in 1992 as a showcase for trombonist Hal Crook (Phil Woods, Tony D'Aveno) to present original pieces composed for the Trom-o-Tizer --a digital effects processor that harmonized his trombone parts and allowed him to be heard over a rhythm section -- the trio, which also featured drummer Bob Gullotti (the Fringe, Surrender to the Air), found a weekly gig in their native Providence, RI.
Soon, their regular bassist was replaced by gu...