Hmmm. Very interesting comments. My very small and as-yet-uncoordinated jam sessions are a mix of both, I guess. I suppose that backs up Rick's point. We just wing it, and if someone breaks into song, that's cool. Of course, we don't have any dedicated singers -- everyone (er, all 3 of us) is predominantly a player; none of use are afraid to sing and we can all carry a tune.

I should point out that the other two guys are very talented and way more experienced than I, but have never bought into the cookie cutter jam mentality, for which I'm thankful.

I guess we are predominantly bluegrass, but all have other interests, too, so it stays very casual and eclectic. Which I like a lot, and I hope we can keep it that way. There's a reason none of us want to go to the weekly bluegrass jam in town... if you don't play it THEIR way, it's WRONG; they've become so entrenched in what everyone does at the jam session.