Jack Bruce to John Cowan in 9 Steps
- Jack Bruce played bass for Too Many Cooks
- Too Many Cooks was produced by John Lennon
- John Lennon was a member of the Beatles
- The Beatles recorded She's Leaving Home
- She's Leaving Home was produced by Rick Jarrard
- Rick Jarrard produced Sister Marie
- Sister Marie was arranged by George Tipton
- George Tipton arranged Don't Leave Me
- Don't Leave Me was recorded by John Cowan