Music21 Fragment Music21 2023-06-27 music21 v.9.1.0 7 40 10080 4 4 G 2 D 0 4 10080 quarter E 0 4 10080 quarter 10080 quarter D 0 4 5040 eighth E 0 4 5040 eighth natural G 0 4 5040 eighth 5040 eighth light-heavy