Classical composer problem

You will find SongKong unravels that, it reads from MusicBrainz db , sees the Composer in the Artist tag and transposes to Composer.

It’s worth a try, especially if your albums are discrete releases . It scans the files develops a unique ID and looks up. I have found it extremely useful to download all the basic grunt work, Work, part , Composer etc plus whatever is in MusicBrainz

He has recently fine tuned it fo4 Roon

The author @paultaylor is active on this forum , he often has a 20% off deal in the Sales section