Definition: Cornet in Greek means "breadcup." It refers to a simple instrument used for music by people from various cultures. Definition: A cornet, also known as a bandocello or bruitto, is a small brass instrument often used for playing traditional French and Spanish instruments, such as the saxophone. It is typically played in unison with other brass instruments like trumpets, trombones, and timpani. The name "cornet" derives from the shape of its mouth, which resembles that of a wheat ear. It was first introduced into France around 1860.