Oh, and Huron Carol? The school Christmas concert, grade three. (They still called them Christmas concerts in those days, and you didn't get to weasel out of performing just because you were Jewish, nosirree.) I played the finger cymbals, as a result of which I was the only member of the percussion ensemble who got to sing.

This one has layers and layers, though. It's also two of the youth choirs I sang in (one here in Toronto, the other back home) that both at various times did a very wonderful SSATB (I think) arrangement in which the altos do a whole bunch of melismatic "gloria"s. And once we did a candlelight procession, and had to learn one of the verses in Huron, with the rest in English and French.