During my travels in the wild I came to notice, though a very minor detail, that the musics were sometimes abruptly interrupted upon certain encounters.

What I'm referring to especially are occurrences like finding a Spirit Tree or encountering a Greebling, where the music suddenly cuts and leaves either silence or the replacing tune. But that might also happen under other circumstances.

Doing so, I'd suggest, if it is possible, to have the tracks fading out (or in) in those situations to make the transition feel more natural.