WE,
Call Bill & Fritzie Wisdom at 610-527-7080 (150 Morlyn Ave., Bryn Mawr, PA 19010). Old time music jam almost EVERY Friday night. The jam has been going for decades. They attend festivals during the summer, beginning with Mt. Airy, so it would be a good idea to call ahead to verify that the jam is on. They are used to dealing with musicians at all levels with any sort of acoustic instrument, even dulcimers. They are certified kay-racters and the jam is highly recommended.