Looks like the piano sonatas are easier to deal with than the violin sonatas (Numbering of Mozart violin sonatas).
I have entered a box set with them all (https://musicbrainz.org/release/1bdbbbf0-718c-4cc8-b702-43967852d601) - the work numberings seem to be consistent (although the ordering of the K numbers is not always so).
A couple of queries:
- All the work names are in English except for No.16 which is in German. Should I make that English for consistency? (I can get round it in Picard by using Classical Extras to pick up the alias
) - This work - https://musicbrainz.org/work/c32961cd-cd03-3c29-b5fd-e16be3877aa0 - has multiple K numbers and is not linked to any series. I wasnât sure how to link it (perhaps the original editor wasnât too sure either!).
Lastly, I made an error on entering the work relationship on https://musicbrainz.org/recording/89313b05-46f3-4e5e-a630-21b624b617c0 Unfortunately the correction seems to need votes. If someone could help with that, I would be most grateful (and also to approve all the recording artists which were done with the script 
).