feat(neume): support notation subtypes · rism-digital/verovio@9c94109

21f-Chord-ElementInBetween produced a different MIDI file

21f-Chord-ElementInBetween produced a different time map

12ad-Clefs-Extreme-Octave produced a different rendering

01d-Pitches-Microtones produced a different time map

ossia-003 produced a different rendering

004-maqam-rast produced a different MIDI file

004-maqam-rast produced a different time map

layer-008 produced a different rendering

chord-001 produced a different rendering

barline-009 produced a different rendering

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