The bass singing voice has a vocal range that lies around the second E below middle C to the E above middle C (i.e., E2–E4). As with the contralto singing voice being the rarest female voice type, the bass voice is the rarest for males, and has the lowest vocal range of all voice types. However, the bass voice is determined not only by its vocal range, but also by its timbre, which tends to be darker than that of a baritone voice. The following is a list of singers in country, popular music, jazz, and musical theatre who have been described as basses.