This sounds like the french ORTF TV broadcast where they play soundchecks, especially at the beginning when they play and stop half way through Cymbaline. Both Atom Heart Mother and Embryo however are the full length versions.

Track Details:

1. Soundcheck jam 1
2. Soundcheck jam 2
3. Cymbaline 1
4. Cymbaline 2
5. Atom Heart Mother
6. Embryo