Les anciens répertoires de plain-chant , HUGLO, Michel, 2005 p.I 109 Inside the Offertory Aspects of Chronology and Transmission, Rebecca Maloy, 2010 p.8 n. 17, 86, 120, 136–39, 197–98, 423
Piece data
Responsorium
Title text
Beatus es Simon Petre,
quia caro et sanguis non revelavit tibi,
sed Pater meus, qui est in caelis(, dicit Dominus).
Piece text
Vers. 1
Et ego dico tibi quia tu es Petrus
et super hanc petram aedificabo ecclesiam meam.