RE: Folk, classical or...? Liszt, definitely!

That's true, actually. Just as one example, I do remember a tune I heard in The Smurfs (the series from the 1980s) when I was small, and just years later, when I started to study music more seriously, I found out it was the beginning of Unfinished Symphony No. 8 by Franz Schubert.

Obviously, I don't watch cartoons anymore hahaha, so I don't know what the situation is with blending classical music into them... 😂