Medeski Martin Wood with Airto Moreira

Wikipedia says “Medeski Martin & Wood’s live performances are renowned for their exploratory nature. Their concerts usually involve extended improvisations, which may be both arrhythmic and atonal, an aspect of their musicianship that is rarely documented in the studio. They also embark on an occasional acoustic tour, reverting back to the instrumentation that they began with. Their album Tonic is an example of these more contemporary acoustic performances. They have also done short tours of entirely improvisatory performances, a feat which few musicians undertake. These shows usually consisted of two sets of improvisation, followed by an encore of a song from an album.”