D-ROu Mus. Saec. XVI-49
Rostock, Universitätsbibliothek, Mus. Saec. XVI-49 6 partbooks: D A T B Q S
Provenance: Copied in Hamburg; compiled by Jacob Praetorius. Date 1566 on title page
Sources of pieces in Choralis Constantinus II: Introits 1 and 3 must have been copied from RISM 15455 or a copy of it. Introit 1 joins Isaac's verse with a different antiphon from RISM 15455, and the readings of Introit 3 are nearly identical to those in RISM 15455. Introit 13 was copied from a copy of the printer's exemplar.
Choralis Constantinus II contents:
- Mass 1
- Introit-Puer natus (verse only; joined to antiphon by Sixt Dietrich from RISM 15455 (vol. I, Introit no. 3)
- Mass 3
- Introit-Ecce advenit (vol. I, Introit no. 5)
- Mass 13
- Introit-Gaudeamus omnes (vol. 1, Introit no. 18)
Character of variants in Choralis Constantinus II repertoire:
Introit 13 has a different liturgical assignment (Mary Magdalen instead of Visitation) and some textual variants to adapt it to its new liturgical role.