At some've the music & song events I attend, certain individuals are prone to perform the same songs/ tunes time after time.

I'll freely admit that if I've recently added a new item to my repertoire, then I'll want to do it frequently, but hopefully at different venues with a fresh audience.

What irks me, [& others, I know] is that the predictability of some performers can become somewhat irritating & boring in the long term.

Of course there'll be manifold reasons that some never seem to learn any fresh material, or is it that sameness is part of 'traditional'?

What think you?