Medeski Martin & Wood (or MMW) is an American jazz trio formed in 1991, consisting of John Medeski on keyboards and piano, Billy Martin on drums and percussion, and Chris Wood on double bass and bass guitar. The band draws on influences from a number of musical traditions, from funk to Hip Hop, and is known for an unconventional style sometimes described as "avant-groove". MMW has found moderate mainstream success—often working with noted guitarist John Scofield—and touring on the jam band circuit.