Apologies if this has been mentioned, I've been busy so haven't popped in for a while.
Anyway, a link here:
www.bbc.co.uk/programmes/b013z9c5

to Bob Harris' review of Whistle Test 40 years on. The section in question is the episode 3 portion available on iPlayer.
Does play in the US, but may not be available for too long.
Bob interviewed Steve and then Steve plays Sebastian. Listening to it now so can't say if more is played.
Expect Steve may have mentioned this upcoming but thought I'd give it a mention.
All the best.

Edit:
Just noticed another post so you guys do know about it - anyway, as of now still listenable.