"communion du 1er mode"@fr . _:b2048954 . _:b2048952 . _:b2048953 . "Potum meum" . _:b2048954 "musique religieuse" . . . "communion du 1er mode"@fr . "Potum meum" . . _:b2048952 . _:b2048953 "musique ancienne" . . _:b2048953 . "20061528" . _:b2048954 . _:b2048952 "chant gregorien" .