No, although in the tags I have multiple ARTISTS, in the file names and directories I only have one ARTIST.
Here's my setup:
If there are multidisks it would be:
In the above, if there is only one artist on the album, I use that artist for the subdirectory. If the album has multiple artists, but is NOT a compilation (e.g., Willie Nelson and Wynton Marsalis), I have an ALBUM ARTIST set (in my case, I use Willie Nelson). And in the file it would be:
x:\music\Willie Nelson\Two Men With the Blues\01 - trackname.flac
But in my various players (squeezeboxes, foobar2000, itunes), they see the metadata and show the album under listings for both Willie Nelson and Wynton Marsalis. Keep in mind that the file names and directory location are just for some organization for the files. My players don't really care about this. They care about the metadata (tags) itself.
For compilations, it is just:
If multidisk, then:
There are no subdirectories for soundtracks, etc.
x:\music\Songs from Chippy\01 - Goodnight Dear Diary - Joe Ely.flac
But again, you can organize the file names/directories however you prefer. Some people organize around genre. For example,
Some organize around years:
The possibilities are endless. Pick an approach and be consistent. And if your tags are correct, you can entirely rearrange your file names and directory listing in the future if you change your mind using functions of mp3tag.