That's interesting, Ian. I've often noticed the way that tune sessions fluctuate in cycles. If the numbers drop too low the atmosphere dies, and then numbers stay low for a while until something happens to drive them up again (a visit by a good player that's been flagged up by email, or a new gang from another session that's closed down, for example). But then often it gets TOO popular for a while, and people arriving later can't get a seat. So then it tails off for a while, and may then again drop below the quorum.

I guess you're suggesting that singarounds may also be self-limiting in term of numbers, though for a different reason. If so, it may help to explain some things I've been puzzled about.

Tom