Handwritten annotations in the Glasgow copy of Choralis II
- Note missing: Sequence 3, verse 14, Altus, fol. bb4v, staff 1 note 1
- Numbers added to clarify values of notes in ligatures
- Introit 4, Bassus, fol. BB3v, staff 3, ligature: "2" next to last note
- Alleluia 15, Bassus, fol. II3v, staff 3, ligature before final long: "4" under last note
- Flats added for clarification
- Tract 4, verse 4, Bassus, fol. CC2v, staff 5, beginning: signature flat added in upper octave
- Introit 15, verse, Bassus, fol. II2v, staff 2, note 3: flat before e
- Tenor, binding: additional music, "Grates nunc omnes"
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