John Lennon to Simon and Garfunkel in 9 Steps
- John Lennon wrote She's Leaving Home
- She's Leaving Home was arranged by George Tipton
- George Tipton arranged 1941
- 1941 was produced by Rick Jarrard
- Rick Jarrard produced Girlfriend
- Girlfriend was sung by Harry Nilsson
- Harry Nilsson wrote Drumming is My Madness
- Drumming is My Madness features drums played by Jim Keltner
- Jim Keltner played drums for Simon and Garfunkel