How to get correct polymeter playback and notation in MuseScore?
Currently I'm trying to write a duet, where one performer plays in 7/8 and the other in 5/8. Looking up how to do this in MuseScore, I found out that holding ctrl while dragging the meter you want to use applies this. However, what I learned shortly after trying this is that it applies it completely incorrectly. Instead of both instruments having the exact same note length value, what happens is that it makes the instruments play polyrhythmically instead of polymetrically. So, instead of having 7 eighth notes play against 5 eighth notes, I get 7 eighth notes playing against what would essentially be 5 eighth-note quintuplets.
How do I fix this? Does MuseScore have a way to actually correctly notate and play back polymeters?