The Tree to Paul McCartney in 9 Steps
- The Tree was written by Harry Nilsson
- Harry Nilsson sang Bath
- Bath was published by Unichappell Music
- Unichappell Music published Miss Butter's Lament
- Miss Butter's Lament was produced by Rick Jarrard
- Rick Jarrard produced She's Leaving Home
- She's Leaving Home was written by John Lennon
- John Lennon wrote Blackbird
- Blackbird was written by Paul McCartney