That'll Be the Day to Sagittarius in 15 Steps
- That'll Be the Day stars Ringo Starr
- Ringo Starr played percussion for Duit on Mon Dei
- Duit on Mon Dei includes drums played by Jim Keltner
- Jim Keltner played drums for Stop and Take the Time to Smell the Roses
- Stop and Take the Time to Smell the Roses features trombone played by Bruce Paulson
- Bruce Paulson played trombone for Drumming is My Madness
- Drumming is My Madness was written by Harry Nilsson
- Harry Nilsson wrote The Family
- The Family was published by Unichappell Music
- Unichappell Music published The Tree
- The Tree was arranged by George Tipton
- George Tipton arranged Sister Marie
- Sister Marie was produced by Rick Jarrard
- Rick Jarrard produced I Guess the Lord Must Be in New York City
- I Guess the Lord Must Be in New York City was recorded by Sagittarius