Blackbird to Mary Hopkin in 7 Steps
- Blackbird was produced by Harry Nilsson
- Harry Nilsson wrote Diez Indios
- Diez Indios was published by Six Continents Music
- Six Continents Music published Marchin' Down Broadway
- Marchin' Down Broadway was published by Unichappell Music
- Unichappell Music published The Puppy Song
- The Puppy Song was covered by Mary Hopkin