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