When they were composing what was ultimately to be called the “Atom Heart Mother” suite with Ron Geesin, Pink Floyd had several working titles, among them “Epic,” “The Amazing Pudding” and David Gilmour’s preferred name, “Theme From an Imaginary Western.”

This June 27, 1970 performance at the Bath Festival of Blues and Progressive Music isn’t the only live record of Pink Floyd playing their 1970 opus with a brass section and choir—they did this a few times—but it’s the first, when the suite was still apparently being called “Epic.”

They finally settled on a title on July 27th, 1970, the date of a BBC radio broadcast with John Peel who needed to call it something. Geesin showed Roger Waters an article in the Evening Standard with the headline “Atom Heart Mother Named,” about a woman with a nuclear-powered pacemaker and they had their album title.

This is certainly the most immediate record of a live “Atom Heart Mother” we have due to it being shot on video and not film to be sync’d up later. And no, this wasn’t shot with a Fisher-Price PixelVision camera (they weren’t on the market at that time) it was most likely recorded on Sony half-inch tape that was looped up on a reel to reel style stationary deck. This would have been the technological height of pro-am video gear at that time, believe it or not.

Starts a little shaky, if not out of tune, but stick with it. Hard to believe fewer than 2000 views on this.