i believe he was featured on a cut on a disc of Kinky Friedman songs..
and one that he wrote which a friend sang to me was:
cans and bottles. he learned it bedcause it had a word in it that he
had not evere heard in a song before...it talks about "my future is on ice" and something like: "the can is chilled just right..to the proper fahrenheit"

he was in bill monroe's band and has written many songs..
i hope he gets better...he has been fighting bladder cancer.

for more info see:
Jimmy Martin Home
Includes biography, song samples, tour dates, photos, message board and chat room.
www.jimmymartin.org/
Jimmy Martin King of Bluegrass
Making of a documentary about bluegrass musician Jimmy Martin. Includes biography, photos, video clips and production updates.
www.kingofbluegrass.com/