There seems to be a bit of confusion here about what sort of sessions are being discussed. If a session happens spontaneously there aren't really rules, although it's irritating if a small group try to hog the whole thing and not let anyone else in. But it's really not good form to turn up at a pre-advertised event and try to turn it into something else. If a session is advertised as an instrumental session singers shouldn't be surprised if they aren't expected to sing. The Wareham Wail is advertised as a singing event for pre-booked ticket holders only, which is why I suggested at the time that people who weren't into singing events might prefer to spend their weekend somewhere else.There will be a session this evening in the Red Lion at Coleshill (off the A355 between Amersham and Beaconsfield). Mostly tunes but some songs too (mainly accompanied).
Kitty