Bill Martin to M. Witmark And Sons in 6 Steps
- Bill Martin played guitar for Blackbird
- Blackbird was written by John Lennon
- John Lennon wrote Old Dirt Road
- Old Dirt Road features drums played by Jim Keltner
- Jim Keltner played drums for Subterranean Homesick Blues
- Subterranean Homesick Blues was published by M. Witmark And Sons