Sound artist Ron Geesin‘s involvement with Pink Floyd in the making of their 1970 LP Atom Heart Mother is one of the more interesting post-Syd Barrett episodes in that band’s history. Here’s the man himself speaking about just that and giving a tour of his pleasantly ramshackle studio.
 

 
As a bonus, here’s the full debut performance of AHM (then called The Amazing Pudding) accompanied by Geesin at the 1970 Bath Festival. Rough quality, not unlike the lunar landing footage from the year previous but the music sounds great.