This idea of how many songs or tunes one is entitled to perform at sing and play evenings or sessions etc., it really is banal and tedious; as if there is some democratic rule that was established and introduced in clubs, moons ago, which there was not. Why not just go along, do your thing, not counting how many you are and expecting how many to do and listen and enjoy others. I`m sure when you review the events you have attended over the course of a year you will be pleasantly surprised at what you heard and learned and you will also have had a fair crack of the whip.