A member of the recorder family. It has the same form as a soprano (or descant) recorder and an alto (or treble) recorder, but it produces a lower sound than either. A still lower sound is produced by the bass recorder and great bass recorder. 

The tenor recorder, like the soprano recorder, is tuned in C, but is pitched an octave lower. Because of its larger size, many tenors have keys to make it easier to play the lowest C and C sharp, and occasionally D and D sharp.