Excellent stuff! and if you don't mind me encroaching on your post mate there is also this next weekend. (Apparently some mod quite likes his music

):
[John Martyn] From the John Martyn Website
"Johnny Too Bad BBC Documentary
This documentary is to be broadcast again on the BBC4 television channel along with an Old Grey Whistle Test performance. Broadcast times (GMT) are -
Friday 20th March 10:00pm to 11:00pm
Saturday 21st March 01:20am to 02:20am
Sunday 22nd March 10:00pm to 11:00pm
Followed by Bob Harris introducing John in concert at the Collegiate Theatre, University College London. It's just John, a bottle of beer, his guitar and Echoplex in a trademark concert recorded in 1978. Songs include Couldn't Love You More, Small Hours and May You Never. Broadcast times -
Friday 20th March 11:00pm to 11:30pm
Saturday 21st March 00:50am to 01:20am"