Folder called “songs” have sub folders of artists, inside which there are folders for albums and singles, inside which reside the flac files.

If there are albums which have multiple artists, there will be a different folder for that. For example there is an artist A and there is an artist B. They will have individual folders. If both of them have released an album or a single, there will a folder called “A, B”.

I use Jellyfin to stream my music. Here are their detailed guidelines.