Musical services of the choir school since c. 1440
The musical duties of the Stephanskantorei increased significantly under Edlerawer. Whereas before 1440, not even for the Te Deum at public festivals was the participation of the singing pupils required—only that of the organist—there were, from around 1440 and continuing into the sixteenth century, the following types of liturgical services organised by the city administration with the school cantor: