I have sky+ these two shows about the late great John Martyn that were on BBC Four last night and will catch up with them soon.
I think I have seen them before, but always worth a watch as he was a nutter but a wonderful guitarist and of the course the voice at the start was sublime.
I went to see John a few years ago in Cardiff, after his leg amputation, he was playing Solid Air in full, due to all his problems it was a good show as he could still play great guitar, I even wrote a review.
A friednofafriend of mine Taif, played bass with him a few years ago on tour and here he talks about John..