👉 The term "decumani" is not commonly used in English. It is a term that refers to a type of musical instrument, specifically a double-headed saxophone. However, I can provide some general information about it: Decumani is a type of double-headed saxophone that was popularized by the German composer and pianist Karlheinz Stockhausen. This instrument has two heads, each with its own sound, and is often used in chamber music or for solo performances. The term
