We had an hour of singing once a week in grade school. Mostly overly well-known American folk songs. I still like most of those songs, even though I really don't like most of those songs, if you get what I mean.

As for all the other stuff I learned, no, most of it is useless in real life. However, I'm glad they threw so much stuff at us -- it gives kids an idea of what's interesting to them so they know in what direction to point their future learning.