Here’s some terrific video, with augmented soundboard audio, of the Tony Williams Lifetime performing at the Montreux Jazz Festival in 1971. This was the final version of the group’s first incarnation—guitarist John McLaughlin, who played on the band’s first two albums, Emergency! and Turn It Over, was gone, leaving behind only Williams and organist Larry Young. But the drummer added Ted Dunbar on guitar, Juini Booth on bass, and Don Alias and Warren Smith on percussion, and (with the exception of Booth) made a third album, Ego.

Here’s the video: