April 12 to John Parr in 11 Steps
- April 12 is the birthday of David Cassidy
- David Cassidy recorded The Puppy Song
- The Puppy Song by Mary Hopkin was produced by Paul McCartney
- Paul McCartney wrote Blackbird
- Blackbird was written by John Lennon
- John Lennon arranged All My Life
- All My Life was published by EMI
- EMI published Turn Out The Lights
- Turn Out The Lights was produced by Harry Nilsson
- Harry Nilsson is featured in the recording of Paris
- Paris performers include John Parr