A bass is a type of classical male singing voice and has the lowest vocal range of all voice types. According to The New Grove Dictionary of Opera, a bass is typically classified as having a vocal range extending from around the second E below middle C to the E above middle C (i.e., E2–E4). Its tessitura, or comfortable range, is normally defined by the outermost lines of the bass clef. Categories of bass voices vary according to national style and classification system.
Italians favour subdividing basses into the basso cantante (singing bass), basso buffo (comical bass), or the dramatic basso profondo (deep bass). The American system identifies the bass-baritone, comic bass, lyric bass, and dramatic bass.
