Generally, it's:
Music > Artist > Album > Songs
But could also be:
Music > Collections > Album > Songs
Music > Soundtracks > Game > Songs
or for multi-disc albums
Music > Artist > Album > Disc 1 > Songs
But that shouldn't matter. Why I want folder-based navigation is so that I can navigate through my music in a way that makes sense to
me. Using the tags for navigation has never really worked for me. Different players sort things differently and especially collection albums get split up a lot when I don't want them to.
Ideally I'd be able to hit a play button on a folder and it would play everything in that folder - including its subfolders.
Shuffle, Add to playlist, Add to 'Now Playing', would also be welcome.
Also nice would be if the player could display an image file if found in those folders - an album art image, artist photos, or anything else, really.
The music player should never add anything to these folders - they should be considered read-only.