From a singing shepherd to his beginnings as a punk guitarist to an internationally celebrated "vocal phenomenon" (The Guardian). Andreas Schaerer always puts his vocal superpowers at the service of music - as artist in residence at the Saalfelden Jazz Festival 2023 with four different, partly brand new, always poetically radical and sometimes "astronomically pulsating" formations. The Swiss, who already learned to fly with Hildegard, has invited musicians as diverse as the Finnish guitarist Kalle Kalima, the American bassist Tim Lefebvre, his Swedish colleague Björn Meyer, the Swiss drummer Julian Sartorius (Sophie Hunger, Mathew Herbert) and the Serbian "Professor of Creative Music Technology" Svetlana Maraš. Sensational? True.