David Cassidy to Gene Estes in 7 Steps
- David Cassidy recorded The Story Of Rock And Roll
- The Story Of Rock And Roll was covered by Collage
- The Collage has songs arranged by Perry Botkin
- Perry Botkin arranged Duit on Mon Dei
- Duit on Mon Dei includes piano played by Dr. John
- Dr. John played keyboards for ...That's the Way It Is
- ...That's the Way It Is includes timpani played by Gene Estes