I created my own "greatest hits" "album" for one of my favorite bands by copying songs from their other albums into a new folder. I still have their studio albums in separate folders as well, and I have edited the album tag of the "greatest hits" copies so they are different from the original mp3s. For example:
Folder - Album 1 - Track 1.mp3, with album tag "Album 1"
Folder - Album 2 - Track A.mp3, with album tag "Album 2"
Folder - Greatest Hits - Track 1.mp3, with album tag "Greatest Hits" - Track A.mp3, with album tag "Greatest Hits"
The other tags (artist, title, etc) are all uniform; Album is the only one that is different between the studio folders and the greatest hits folder.
Google Music is not uploading both versions of these songs; it is instead only uploading the "Greatest Hits" version of these "duplicate" songs, leaving my studio albums with gaping holes in their tracklistings.
How can I force Google Music to upload both versions o the same song?