I blogged about seeing David Gilmour at the Albert Hall last year. I got the DVD "Remember That Night" for Christmas and I'm looking at it for the first time this evening. I said about the performance of Echoes:
... an absolutely stunning performance of "Echoes". The band seemed to be really into the piece and there was a very good middle section (I guess improvised) with great interactions between David Gilmour and Rick Wright. ... Wonderful, great, ...Understatement. And kudos to Guy Pratt.