Mmmmm... the two clubs I'm involved directly in organising don't operate membership schemes (as I've already mentioned), and are poles apart regarding regular attendance.

I'm fairly certain that a membership scheme would not help the Open Door to boost attendances; the regulars are fairly committed already - it's the same dozen or so week in, week out, whether we have a guest (monthly) or not. Occasionally a guest may attract a couple more visitors, but they don't become regulars - and would not want to become 'members'.

A membership scheme may help regulars at the Railway if it meant a discount on guest tickets, though it is unlikely to boost club income... The interesting thing is that the audience on a guest night differs a lot from that on a singers' night. A few 'core regulars' turn up for both, but most of the singers' night regulars don't turn up for guests - with the exception of a couple of guests, Martyn Wyndham-Read and Garva... which is interesting.