WB Music Corp. to Bill Martin in 15 Steps
- WB Music Corp. published Is It the Music
- Is It the Music was published by Black Molasses Music
- Black Molasses Music published I've Got It
- I've Got It was written by Perry Botkin
- Perry Botkin (the elder) played guitar for Bing Crosby
- Bing Crosby is one of the many artists that recorded Makin' Whoopee!
- Makin' Whoopee! was produced by Derek Taylor
- Derek Taylor produced It Had to Be You
- It Had to Be You was arranged by Gordon Jenkins
- Gordon Jenkins arranged It's Only a Paper Moon
- It's Only a Paper Moon was written by Edgar Yipsel Harburg
- Edgar Yipsel Harburg wrote Over The Rainbow
- Over The Rainbow was sung by Harry Nilsson
- Harry Nilsson produced Blackbird
- Blackbird features guitar played by Bill Martin