Breathe (from the film “The Body”)

Waters originally recorded a song called "Breathe" for Music from The Body, a soundtrack album which he recorded with Ron Geesin. Although the two are largely different in lyrics, chords and subject matter, this version can be seen as an early version of the song. Although the song is still available through CD and digital releases of this soundtrack album, it often appears on Pink Floyd bootlegs, most notably on A Tree Full of Secrets.

https://en.wikipedia.org/wiki/Breathe_(Pink_Floyd_song)