Fix invalid MusicXML for an unpitched grace note in a voice#1973

jacobtylerwalls merged 2 commits into

cuthbertLab:mastercuthbertLab/music21:masterfrom

pablopupo:fix/1732-unpitched-voice-orderingpablopupo/music21:fix/1732-unpitched-voice-orderingCopy head branch name to clipboard