Alio Die, pseudonym of Stefano Musso (born 24 March 1968 in Milan, Italy), is an Italian organic ambient composer and producer. Characterized by evocative acoustic sounds manipulated and tendered electronically, Alio Die's work builds intimate soundscapes tied to the mystery and majesty of life and nature. Stefano Musso studied art and electronics in his home town of Milan and began performing ambient music under the name Alio Die in 1989. In the early 1990s he released two limited cassette releases, "Sit Tibi Terra Levis" and "Introspective".