Once again, I'll recommend this. Don't remember (and am honestly too lazy to go look) if you're the person who first posted this, but I've heard nothing but good out of the participants who've been to this event. Check the Lark in the Morning website. Past years they've covered almost every conceivable variety of music and dance, with a heavy tilt towards traditional.

Only wish I could afford what this is worth, not to mention get the time off to attend...

M