This is an excellent audience recording. Dave Gilmour asks the audience, "Somebody's asked me to ask you not to smoke, because apparently some people are not feeling too well, for reasons I don't understand".
Right at the beginning of "Careful with that axe, Eugene" a woman in the audience sings "This is Lynne... This is Lynne" in tune with the opening chords of the song!

Track Details:

Disc 1:
Embryo
Fat Old Sun
Set the Controls for the Heart of the Sun
Atom Heart Mother (without Choir)
One of These Days

Disc 2:

Careful with that axe, Eugene
Cymbaline
Echoes
Slow Blues