The book studies those sacred songs of the Monk of Salzburg corpus which do not rely directly on a Latinmelodic or textualoriginal. These songs show the form of the canzonic stanza and have therefore been considered to belong into the vernacular tradition of Sangspruchdichtung and Meistergesang. In contrast, the study argues that they rely on, imitate and modify the model of the (monophonic) Latin Liturgical Song, a genre which emerged in the late 12th century and was highly productive in Central Europe until the mid-15th century. For this purpose, a substantial number of late medieval Latin manuscripts containing songs have been assorted, a selection of the Latin songs is edited in an appendix.