I thought David retired years ago from performing and is now running a violin/string instrument store. Where was the show? Did he perhaps play 'Send me to the 'lectric chair"?
Jorma and David together, you are very lucky. Haven't seen either of them for 20 years or more. I saw one show in the 70's where Harry Chapin open for David. Still have the ticket stub. Saw too many Jorma/Hot Tuna to remember them all.