The Wailing of the Willow to Richard Adams in 9 Steps
- The Wailing of the Willow was covered by Astrud Gilberto
- Astrud Gilberto recorded Don't Leave Me
- Don't Leave Me was arranged by George Tipton
- George Tipton arranged River Deep-Mountain High
- River Deep-Mountain High was produced by Rick Jarrard
- Rick Jarrard produced The Tree
- The Tree was written by Harry Nilsson
- Harry Nilsson helped write the song Watership Down
- The novel Watership Down was written by Richard Adams