We're having the same problem with our new lunchtime, er, folk club: the musicians' fears that it will turn into a singaround seem to be coming true, while the singers are worried that they won't get a fair crack of the whip if somebody keeps jumping in with a tune just as they try to start a song. The solution proposed is to dedicate one meeting a month as a dedicated tune session, and the others as song and/or music sessions.

If we say "music session" or "song session", no-one will be under any misaprehension. All in favour...?

Steve