Männerchor

A men's chorus or male voice choir (MVC) (German: Männerchor), is a choir consisting of men who sing with either a tenor or bass voice, and whose music is typically arranged into high and low tenors (1st and 2nd tenor), and high and low basses (1st and 2nd bass; or baritone and bass)—and shortened to the letters TTBB. The term can also refer to a piece of music which is performed by such a choir.