April 12 to April 29 in 9 Steps
- April 12 is the birthday of David Cassidy
- 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 wrote Little More Rain
- Little More Rain was written by Harry Nilsson
- Harry Nilsson wrote Mucho Mungo-Mt. Elga
- Mucho Mungo-Mt. Elga features bass played by Klaus Voormann
- Klaus Voormann was born on April 29