This is pretty cool. Specially for all you ‘heads’ out there. Actual live footage of FZ avec Telecaster jamming with Ummagumma-era Floyd at a festival in Belgium.

https://www.guitarworld.com/artists/pink-floyd-frank-zappa-jam-interstellar-overdrive-1969-belgium

https://www.guitarworld.com/artists/pink-floyd-frank-zappa-jam-interstellar-overdrive-1969-belgium