 Whitehead also appeared on Soft Machine's "BBC Radio 1 Live in Concert" (1971), Harris' "Sugar Cane's Got the Blues" (1972) and on some tracks of the Neil Ardley/Ian Carr/Don Rendell album "Greek Variations" (1970).In 1967 Whitehead recorded on the Charlie Munro Quartet album "Eastern Horizons" with Charlie Munro (saxophone and cello), Mark Bowden (Drums and Percussion) and Bob McIvor (Trombone).Whitehead recorded tracks on Bob Grimm's album "Akasha" at Morgan Studios in London in 1971, after Bob left Frankie Valli's Four Seasons.