Need better grace note/ornament playback
Sometimes, grace notes should be played before the beat of their parental notes, instead of being played within the same beat.
Appoggiatura and grace notes with duration (8th, 16th, 32nd, 64th, etc.), either before or after, don't have ideal playback effect.
I suggest that MuseScore can have a window that can edit the properties of grace note or ornament (e.g. to edit what melody should it play).