I am trying to group all songs with no album title (i.e. the 'Album' field for the songs' metadata is empty) for the same artist into one "Unknown Album"
Each song with no album title should be grouped in the same "Unknown Album" album for the artist. Instead each individual song for the artist is split into multiple "Unknown Album" listings (see image)
What I have tried to fix this: In iTunes, adding an album title for every song with no album title, then removing the album title.