I love Gilmour's huge edge-of-breakup guitar tone on this live Pink Floyd track from Ummagumma. I strongly believe it's his Telecaster rather than the ubiquitous Black Strat. Maybe somebody can back that up or disprove. Cleary Gilmour was paying tribute to Syd Barrett here. Doesn't quite match the frantic snarl of Syd's Esquire on the studio album track but a great performance nonetheless.