1626—Bologna, Italy
Camillo Cortellini’s collection of concerted masses, Messe concertante a otto voce, includes specific instructions on how instruments are to be used: “The Mass In Domino confido has the concerted Gloria, and where the text is in capital letters, the singer will sing the solo, and where the text is replaced by lines, the trombones or other similar instruments will play soli for the accompaniment of the parts. This can be done without organ if instruments are present…” (Guion, Missing Link).