John Lennon to William Weiss in 8 Steps
- John Lennon produced Loop de Loop
- Loop de Loop features piano played by Jane Getz
- Jane Getz played piano for Back Off Boogaloo
- Back Off Boogaloo was arranged by Van Dyke Parks
- Van Dyke Parks played keyboards for ...That's the Way It Is
- ...That's the Way It Is includes trombone played by Richard Nash
- Richard Nash played trombone for Aerial Ballet
- Aerial Ballet includes violin played by William Weiss