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Keywords
- Annotations1
- Astronomy1
- Catholic Church1
- Early works4
- Four elements (Philosophy)1
- Fourteenth century1
- Gregorian chants1
- Gregorian chants--Manuscripts1
- Harmonics (Ptolemy)1
- Islamic cosmology1
- Islamic philosophy1
- Liturgics1
- Manuscripts2
- Manuscripts, Arabic3
- Manuscripts, Greek1
- Manuscripts, Latin1
- Manuscripts, Medieval3
- Manuscripts, Renaissance2
- Medicine1
- Medicine, Arab1