> It just sounds so dated, maybe because I listened to it too much?
Something like that happened to me, again and again.
Overlistening things I love (not necessarily because of me, sometimes it's third parties piling upon my own listening), then at some point I start to not like it anymore to a point ranging from "I have no interest in it anymore" to "it makes me cringe".
Then if I manage to avoid it for some time, often I end up rediscovering it (often by accident) and like it again, but the reason I re-like it is usually deeply different from the original one, and certainly far removed from nostalgia.
Not listening for some time indeed sometimes helps. I now try to avoid listening music I really really like too often. It's something beautiful you take out of its box every few months/years. Stuff like Ole Coltrane or Miles Davis' Filles de Kilimanjaro.
Instead, music has become much more timeless for me. 50/60ies jazz, 70s prog rock, Bowie, 2010s hiphop, it’s really all over the place.