Donna I Understand to Howard Roberts in 13 Steps
- Donna I Understand was written by Harry Nilsson
- Harry Nilsson wrote The Wailing of the Willow
- The Wailing of the Willow was recorded by Anita Harris Quartet
- Anita Harris Quartet recorded The Wailing of the Willow
- The Wailing of the Willow was recorded by Astrud Gilberto
- Astrud Gilberto recorded Don't Leave Me
- Don't Leave Me was produced by Rick Jarrard
- Rick Jarrard produced Without Her
- Without Her was recorded by Julie London
- Julie London recorded Without Him
- Without Him was produced by E. J. Gold
- E. J. Gold photographed Bill Martin in a bear suit for the album Harry
- Harry includes guitar played by Howard Roberts