There seems to be much confusion about this release, let's see if I can clarify the situation.The original concert that took place on the 27th June 1976 at the Berlin Philharmonie consisted of only one track which was 31mins 31secs in length. It's a justly famous performance and is out there in very good sound if you look for it.This means therefore that an extra 10 mins worth of overdubs and added sounds have been added. Presumably in order to make it up to a minimum length for an official release. Anyway the result is horrible and this is a totally misguided release.Hope that's cleared things up.