Final answer:
The drummer in Coleman's quartet could differ, depending on the context and the specific quartet. Notable drummers in Ornette Coleman's quartets have included Billy Higgins, Ed Blackwell, and Denardo Coleman.
Step-by-step explanation:
The question "Who plays drum in Coleman's quartet?" is somewhat open to interpretation, as it lacks specificity regarding which Coleman is being referenced. If the question pertains to the iconic jazz artist Ornette Coleman, for example, the drummer would vary depending on the period of his career and the specific quartet formation. Renowned drummers who have played in Ornette Coleman's quartets include Billy Higgins, Ed Blackwell, and Denardo Coleman, Ornette's son. However, without additional context, it is challenging to provide a definitive answer.a