👉 An astonis is a type of musical piece that has been created by combining various musical elements. It is often used in opera, ballet, and other classical music pieces to create a unique and interesting sound effect. The term "astonis" comes from Latin, and it means "shock or surprise." In the context of musical composition, an astonis can be defined as a piece that has a distinctive and unexpected tone or rhythm that is distinct from other musical elements in the piece.