Root Assumptions
Root Assumptions is a solo percussion album by Jerome Cooper. It was recorded in April 1978 in New York City, and was released by Anima Productions in 1982. On the album, Cooper performs on a variety of percussion instruments, including African balaphone, bass drum, and sock cymbal. Reception

In a review for AllMusic, Brian Olewnick wrote: "On Root Assumptions, with a balaphone (an African antecedent to the marimba) featured prominently, Cooper creates an amazing and beautiful variety of percussive sounds, rhythms, and melodies... making the session an unforgettable one. His main source of inspiration appears to have been the West African percussive tradition and, possibly, the minimalism of Steve Reich, himself heavily influenced by Ghanaian drumming. The pure musicality of Cooper's sound is astonishing and the listener quickly forgets that he/she is listening to a 'mere' drummer. Root Assumptions is one of the finest solo efforts by any jazz musician, regardless of instrument, and is very highly recommended to listeners of progressive jazz, minimalism, and traditional African music." Nate Chinen, writing for The New York Times, described Cooper as "an alert, rigorously precise drummer who drew from a wide palette of textures," and noted that Root Assumptions "evoked both tribal music and minimalism." A reviewer for New Age magazine wrote: "Using an African balaphone, a bass drum, and a sock cymbal, [Cooper] creates mysterious modern rituals which produce nice psychic effects for the attentive listener." Track listing
All compositions by Jerome Cooper. "Root Assumption Part I" – 17:55
 "Root Assumption Part II" – 14:35

Personnel 
 Jerome Cooper – balafon, cymbal, drums, percussion, bass drum

References

Jerome Cooper albums
1982 albums
Percussion music