Music plays an important role during  the rituals of Hermann Nitsch. The artist was f.e. influenced by Gregorian Chant,  an unison chant used in earlier times during the ecclesiastical liturgy. Whithin a interactive Singing-Workshop the participants together with expert Marco Paolacci get an insight into this unfamiliar soundscape. They learn about the development of the Gregorian Chant,about the neumes, which are the notation symbols, and finally about the selfexperience of the meditational component of the Gregorian singing.