Harry Nilsson to Open Your Window in 9 Steps
- Harry Nilsson wrote Remember (Christmas)
- Remember (Christmas) was produced by Richard Perry
- Richard Perry produced My World
- My World is an album by Ray Charles
- Ray Charles is one of many artists that recorded It Had to Be You
- It Had to Be You was written by Gus Kahn
- Gus Kahn wrote Makin' Whoopee!
- Makin' Whoopee! was recorded by many artists including Ella Fitzgerald
- Ella Fitzgerald recorded Open Your Window