Folio
181v
Sequence
001
Text
Tu es Petrus et super hanc petram aedificabo ecclesiam meam et portae inferi non praevalebunt adversus eam et tibi dabo claves regni caelorum
Feast
Liturgical occasion
Genre
Mode
2?
Cantus ID
g00035
Notes
Mode 2 but the line suggests the authentic Protus (Line = F, a 3rd above the finalis).
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