Something I've noticed lately in both local & more remote seshes is a sort of variation in fairly well known tunes is the difference in the number of times the various parts are played.

Yesterday, at our afternoon sesh, a couple of people we hadn't seen before led some tunes we regularly play, but only did the A part once with the B part as usual twice.

Some other folk some weeks back did '3 around 3' with the A part the familiar one, but the B part completely different.

Anyone else similar observations?