Yup, the only reason Sans can be bothered with something as bothersome as playing in a band is because it makes Papyrus happy.



I don't really have an exact idea of who all are part of the band and who does what, but the way I figured it was that Undyne would play the keyboard since she canonly plays the piano, and I have no idea who would be on drums as I think Alphys would be more of a groupie. Other than that the way you see it is pretty much how I see it!