posthumous releases are a thing
posthumous releases are a thing
Classical music categorization (where the composer of the music is often of more interest than the performer) is very difficult to reconcile with pop music (where the opposite is more likely to be true).
How many fields are displayed is up to the UI, but having metadata to indicate what the most sensible field is would allow a simple UI like Spotify to just show that by default.
Specifying on an individual level avoids trying to lump together genres and categorize which field matters most for each.
Can't you just let the user decide "artist + track" or "artist + composer(s) + track" or ...
Pop music? Yeah people don't care about the composer credits.
Classical music or a jazz standards band? You want the performing artist and the composer.