I'm sure many clubs have their own regular patterns, which could loosely be called "traditions". For example, they may begin the evening with an instrumental medley as people arrive: the residents may start the singing with a familiar song or two; they may often finish with a particular chorus song or shanty. In between, there will be certain features that are, if not traditional, at least predictable, mixed in with some completely new and unexpected offerings.

It's a bit like the way we celebrate Christmas and other festivals - there's the broad tradition that's recognised nationwide (tree, lights, presents, carols etc) and within that there are particular family tradtions adn rituals that may apply only within a small group.

Trying to find songs that are appropriate to the season or the calendar appeals to the more tradition-minded in a club, whereas others will happily come along and sing "Summertime" or a rude rugby song on Remembrance Day or on Twelth Night. Personally, I like to sing and to hear songs that fit the time of year, whereas some people evidently don't give it a second thought.

Marje