Duo seraphim clamabant alter
| Melody incipit: |          |
| Text: | Duo seraphim clamabant alter |
| Feast: | Additamenta |
| Genre: | re |
| Modus: | 1 |
Audio samples of Duo seraphim:
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| Melody incipit: | |
| Text: | Duo seraphim clamabant alter |
| Feast: | Additamenta |
| Genre: | re |
| Modus: | 1 |
Audio samples of Duo seraphim:
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