So, I made a mistake while trying to tweak the way Musicbee auto-organizes my library.
I had just recently set up a bunch of "sort as" tags for several artists with multiple aliases so they'd be grouped together with the primary artist.
I then had the bright idea to try to have Musicbee auto-sort the files of the aliases into the primary artist's folder by changing my auto-organize rule from:
<Album Artist>\<Album>\<Disc-Track#> <Title>
to:
<Sort Artist>\<Album>\<Disc-Track#> <Title>
Now, this actually worked fine for the tracks under the aliases, but for some reason the tracks under the primary artist vanished entirely. I tried rescanning my library, changing back to the old sort rule, even doing a windows explorer search across my whole PC, but they're nowhere to be found.
Is there any chance of restoring these files? It's not a total loss as I'm able to redownload them, but I'd done a lot of custom tagging work that I'd be sad to lose.