We sang English folk songs - great stuff for kids in an Ozzie country town in the late 50s-early 60s.
Early one morning
D'ye ken John Peel
No John no
and probably more, much of which has escaped through the holes in my brain.

In high school I joined the choir. Now this was a co-ed high school but singing was not considered cool by the boys except for one or two hardy souls (who, I believe, still remain unmarried to this day) so the choir was pretty much girls only. We sang songs like:
The ash grove
Tritsch Tratsch Polka (tune by one of the Strauss family)
Stout Hearted Men from "New Moon" by Sigmund Romberg....I kid you not.....a choir of 14 year old girls......I can still sing it!

And in French class we sang Frere Jacques, Il etait une bergere, Au claire de la lune, but we didn't learn Alouette.

Cheers
JennieG