Pompeii for set the controls, Floyd have played it and played it until it sounds perfect, it sits with the visuals superbly.

Echoes - hmm, probably the original version, it's a song that relies on timing and the best way to combat this is in the studio.
Vocally it's one of Floyd's softest tracks and dave's voice is often a little too raw live.

I heard a polished live version of 'Atom' on a rare VCD which seems superb, but the sound and picture of the VCD is awful though. Dave performs the vocal harmony in the place of the female choir singer, seems very ghostly, brr, then all the band come in with harmonies when the tempo picks up (Floyd at there best again!). I'd like to hear a good quality recording of this song.