On Saturday we had a Christmas party with my family, and in addition to sampling the baking that everyone brought, we also sang some carols. There was the old, old-fashioned way of doing carols, with my mother pumping away at the old organ that was her great-grandmother's. You have to pump the foot pedals to push the air through it, so her stamina didn't last that long.
Then we switched over to what seems the exact opposite: karaoke carols on youtube. Carbon's favorite carol is "three ships", and Hypatia likes "deck the halls" this year, which she calls the "holly and jolly song".