Bassist Buster Williams is one of the all-time greats in modern jazz. A sideman with experience all over the map — supporting singers such as Nancy Wilson and Sarah Vaughan, and anchoring bands like the Jazz Crusaders and Sphere — he's probably best known for his tenure with Mwandishi, the groundbreaking, unclassifiable early-1970s group led by pianist Herbie Hancock. But Williams also has a long track record as a bandleader and composer.