Comcast finally got my connection back up to speed so I can at last post some clips of John Martyn.
First from 1978 the exquisite "Small Hours":
Then a 1995 duet with Kathy Mattea on "May You Never":
"Johhny Too Bad" with a full band in 2004:
And finally his masterpiece "Solid Air" with Danny Thompson:
R.I.P. Big John.