

| Language: Latin | Evangelium secundum Ioannem: 17,3. | Haec est vita aeterna ut cognoscant te solum verum deum |
| Gumpelzhaimer (1611), 1: [f. 15r:] Iosqvinus. «Haec est vita aeterna ut cognoscant» | This duo is employed as example of mensural proportions in «Caput nonum de proportionibus». The solution is given on f. 15v: «Sequuntur resolutiones illarum vocum». In 1591 and 1595 editions the duo is textless. |
| Josquin des Prez, Missa Fortuna desperata. Modern edition: Smijers, Josquin: Missen | I have yet to analyze the relationship between this mass and the duo. |