Since it was founded 100 years ago by the musicologist Willibald Gurlitt, the music department at the University of Freiburg has studied the history of music from the early Middle Ages to the present. The volumes in the series ‘Freiburger Beiträge zur Musikwissenschaft’ (the Freiburg Contributions to Musicology), which have been published under the title Voces since 1995, are dedicated to upholding this tradition. This title refers to the tradition of medieval solmisation, which was taught and used until during the 16th century and represents a key element in understanding medieval sources of music. In this respect, the publications in the series are intended to bring to life the works they focus on through historical and music theory source criticism in tandem with intensive analytical examinations, and in this way make them more understandable for readers today.