A trumpet is a common musical instrument in the brass family, which includes the Cornet, French Horn, Trombone, Baritone, Euphonium, and Tuba, among others. It is the highest sounding member of the group because it has the shortest pipe. Sound is made by vibrating the lips against the mouthpiece. | A trumpet is a common musical instrument in the brass family, which includes the Cornet, French Horn, Trombone, Baritone, Euphonium, and Tuba, among others. It is the highest sounding member of the group because it has the shortest pipe. Sound is made by vibrating the lips against the mouthpiece. |