Haec est*
- Folio
- 031r
- Sequence
- 33
- Differentia
- *
- Manuscript Reading Full Text (standardized spelling)
- Haec est*
- Manuscript Reading Full Text (MS spelling)
- Hec est
- Indexing Notes
- music incipit doesn't clearly suggest either 3006 or 3007;
- Image link
- https://digital.dombibliothek-koeln.de/hs/content/zoom/185018