I've previously downloaded the code base for MuseScore, and might have a look around to see if there are any clues as to how to implement this kind of functionality - initially though I suspect it's likely to be a fairly significant technical change, as well-coded as MuseScore is within its Qt framework (which I've always thought tries to force good design principles). For organ music, design-wise you'd be implementing something similar to pre-programmed thumb pistons - and in fact replicating this functionality could be a good design guide into future versions.
You often only need to swap between two or three patches in a particular score, but do this many times in a single score.Īs to how it could be implemented, I guess there are a few options, but they seem to me to be a fairly significant change (or at least the addition of quite new functionality) into the app. Not sure I'd call it a bug either, but it would be nice to 'flip' between, say, organ registrations (stop combinations), rather than create a new mixer patch choice each time (which quickly gets unwieldy).