In 1970, Utmost Roach 1st organized M’Boom, a distinctive unit comprised entirely of percussionists. Through the use of such tools as marimba, xylophone, tympani, vibes, bells, gongs, drum models, and a good musical noticed, Roach leads an extremely colourful and self-sufficient group. Originally a septet made up of Roach, Warren Smith, Freddie Waits, Omar Clay, Joe Chambers, Roy Brooks, and Ray Mantilla, the group grew to ten items in old age. A part-time task, M’Boom has documented for Baystate (1973), Columbia (1979), Spirit Notice (1984), and Blue Moon (1992) and made an appearance in the 1994 Monterey Jazz Event.