Graduale missali Romano, cantui vero Gregoriano-Moguntino accommodatum - Rotingo, Philippus de (Mainz Küchler, 1870)
Book in big dimensions, donated to Ton Koopman by the conductor of Sankt Valentin in Kiedrich
Cover originates from an atlas, which Cor Knops added to the unboud volume
Keywords: 16th Century (1501-1600); Vocal music; Catholicism