One of the premiere fusion groups, the Mahavishnu Orchestra was considered by most observers during its prime to be a rock band, but its sophisticated improvisations actually put its high-powered music between rock and jazz. Founder and leader John McLaughlin had recently played with Miles Davis and Tony Williams' Lifetime. The original lineup of the group was McLaughlin on electric guitar, violinist Jerry Goodman, keyboardist Jan Hammer, electric bassist Rick Laird, and drummer Billy Cobham.