A bass-baritone is a singing voice that shares certain qualities of both the baritone and the bass
The bass-baritone voice is distinguished by two attributes. First, it must be capable of singing comfortably in a baritone tessitura (Italian: texture) It must also, however, have the resonant lower range typically associated with the bass and cover the range from the F# above middle C to the F below the bass clef but rarely descends beyond the C below middle C.