No answers so far -
A supplementary question - just in case somebody has the bottle to answer the first ones.
If Alistair Anderson or Tony Hall turned up at your club would you feel free to take out your guitars, concertinas, euphoniums..... whatever, and accompany them - if not, why not?
Jacqui, with resect - you might not mind people joining in - others do.
Should it not be a case of not doing so unless you are invited to?
Jim Carroll