I play mandolin and banjo as well as guitar, I guess that I would suggest the same--that is to play rhythm guitar and learn one of the melody instruments. What I really enjoy doing is flatpicking, but except for wonders like Dave MacIssac, sesson players want the guitar to play rhythm. I'm not ready (yet) to challenge their expectations. One of these days though, I want to show up with my electric guitar and my pignose amp.