Medeski Martin & Wood (or MMW) is an American jazz trio formed in 1991, consisting of John Medeski on keyboards, Billy Martin on drums and percussion, and Chris Wood on double bass and bass guitar. History The band members were introduced to each other by jazz drummer Bob Moses, who had performed with both John Medeski and Chris Wood, and was Billy Martin's instructor. Medeski Martin & Wood's first performances together were at the Village Gate, a popular New York jazz club. They were initially an acoustic jazz trio, but Medeski added a Hammond organ when the difficulties of touring with a piano became apparent. Their first album, Notes from the Underground, is a record of their entirely-acoustic era. All of their subsequent albums reveal Medeski's use of a wide variety of keyboards, including a mellotron, a melodica, and a clavinet, among others. Chris Wood entirely eschewed the electric bass for MMW's first