Media vita in morte sumus
Media vita in morte sumus (Latin for "In the midst of life we are in death") is a Gregorian chant, known by its incipit, written in the form of a response, and known as "Antiphona pro Peccatis" or "de Morte". The most accepted source is a New Year's Eve religious service in the 1300s. Reference has been made to a source originating in a battle song of the year 912 by Notker the Stammerer, a monk of the Abbey of Saint Gall. After the song had been used as an incantation, the Diocesan Synod of Cologne declared in 1316 no one should sing it without prior permission of the residing bishop.