I missed the bit on the release date which was the 23rd,so I have only just unwrapped it this evening. Doubt I'll get a chance to listen till the weekend what with radiators deciding to detach themselves from walls through weight/Victorian failing plasterwork.(god I was lucky-I was away all weekend and it just managed to hang in situ at 35 degreesaway from the wall)
Yes it is very similar- it's a 1977 live radio broadcast.