Ho-lee crap! Joni! "Chinese cafe", BOS5 and kudos to Marcus for one of the most interesting '82 sets in memory.
I think he's quite a bit younger than you & me, here's his KBCO bio.
The Story of Marcus: Born Marcus Allen Zimmerman in Duluth, Minnesota, Marcus briefly attended the University of Minnesota before leaving for New York City to be a part of the coffeehouse scene. It wasn’t long before he ended up in the Green Mountains of Vermont, splitting the year between snowboarding and following Phish around the country. After showing off in an attempt to make it into a ski movie, a few broken bones forced him to give up snowboarding. Without Phish to follow around the country, Marcus ended up in Boulder, where the mountains are bigger, there’s better Mexican food, and the jam scene is more reliable. Now he enjoys biking and compulsively reorganizing his CD collection. which made me wonder right off...a Zimmerman from Duluth? ya don't suppose...?