Mass 17 (Saint Pelagius): Sources
Introit: Laetabitur iustus
- D-As Tonkunst Schletterer 7
Alleluia O Pelagi
- CZ-Bam 14/5
Sequence: Omnes devota mente
- No other sources
Communion: Qui vult venire post me
- D-As Tonkunst Schletterer 7
Introit: Laetabitur iustus
Alleluia O Pelagi
Sequence: Omnes devota mente
Communion: Qui vult venire post me