@Explorer_200 it’s true that we use MusicBrainz for some of our music metadata, however we don’t make use of all the available data in there at present, including (as mentioned by @wmb) the composer tag. Suggesting editing MusicBrainz is unhelpful in this situation.
There’s a very thorough feature request here for better support for (among other things) better classical music support, as mentioned by Otto above:
