Don Coster to Gordon Howard Marrow in 8 Steps
- Don Coster arranged Bongo Rock
- Bongo Rock was produced by Michael Viner
- Michael Viner produced Bongo Rock '73
- Bongo Rock '73 was mixed by John Lennon
- John Lennon was a member of the original Hollywood Vampires
- Hollywood Vampires was a celebrity drinking club that included Ringo Starr
- Ringo Starr played percussion for Duit on Mon Dei
- Duit on Mon Dei includes violin played by Gordon Howard Marrow