(1) A high male singing voice with a range from C below middle C to A above. The main types of tenor are the lyric tenor, or tenore di grazia, and the dramatic tenor, or tenore di forza. The lyric tenor is characterized by its soft timbre, ability to sing tuneful melodies, and mobility. The dramatic tenor is distinguished by great force and breadth of sound over the entire range. There is also a lyric-dramatic tenor and an alto, which reaches E above high C.
(2) A musical wind instrument used in wind bands. The term also refers to some musical instruments, usually of middle register, belonging to a given family—as, for example, the tenor saxophone or tenor dombra.
(3) In the Middle Ages, from the 12th century, the voice in contrapuntal composition that carried the main melody, or cantus firmus. At first the tenor was a low voice; with the addition of the bass, it became the middle voice of a polyphonic work.