Bass (voice type) in the context of "Bass instrument"

A barbershop quartet is a group of four singers who sing music in the barbershop style, characterized by four-part harmony without instrumental accompaniment (a cappella). The four voices are: the lead, the vocal part which typically carries the melody; a bass, the part which provides the bass line to the melody; a tenor, the part which harmonizes above the lead; and a baritone, the part that frequently completes the chord. The baritone normally sings just below the lead singer, sometimes just above as the harmony requires. Barbershop music is typified by close harmony—the upper three voices generally remain within one octave of each other.

While the traditional barbershop quartet included only male singers, contemporary quartets can include any gender combination. All-female barbershop quartets were often called beauty shop quartets, a term that has fallen out of favor. The voice parts for women's and mixed barbershop groups use the same names as those for male groups since the roles perform similar functions in the quartet although the vocal ranges may be different.

A baritone is a type of classical male singing voice whose vocal range lies between the bass and the tenor voice-types. It is the most common male voice. The term originates from the Greek βαρύτονος (barýtonos), meaning "low sounding". Composers typically write music for this voice in the range from the second F below middle C to the F above middle C (i.e. F₂–F₄) in choral music, and from the second G below middle C to the G above middle C (G₂ to G₄) in operatic music, but the range can extend at either end. Subtypes of baritone include the baryton-Martin baritone (light baritone), lyric baritone, Kavalierbariton, Verdi baritone, dramatic baritone, baryton-noble baritone, and the bass-baritone.

Thomas Linley (17 January 1733 – 19 November 1795) was an English bass and musician active in Bath, Somerset. Born in Badminton, Gloucestershire, Linley began his musical career after he moved to Bath at age 11 and became apprentice to the organist Thomas Chilcot. After his marriage to Mary Johnson in 1752, Linley at first supported his wife and growing family predominantly as a music teacher. As his children grew and he developed their musical talent, he drew an increasing amount of income from their concerts while also managing the assembly rooms in Bath. When the new Bath Assembly Rooms opened in 1771, Linley became musical director and continued to promote his children's careers. He was eventually able to move to London with the thousands of pounds which he had amassed from their concerts.

Among Linley's students were his eight children (Elizabeth Ann, Thomas, Mary, Samuel, Maria, Ozias, William, and Jane), as well as tenor Charles Dignum, singer and actress Anna Maria Crouch, and novelist Frances Sheridan. Linley collaborated with his son Thomas in penning the comic opera The Duenna, with libretto by his son-in-law Richard Brinsley Sheridan.

Four-part harmony is music written for four voices, or for some other musical medium—four musical instruments or a single keyboard instrument, for example—for which the various musical parts can give a different note for each chord of the music.

The four main voices are typically labelled as soprano (or treble and countertenor), alto (contralto, countertenor or mezzo), tenor, and bass. Because the human voice has a limited range, different voice types are usually not able to sing pitches that lie outside of their specific range.

In music, SATB is a scoring of compositions for choirs or consorts of instruments consisting of four voice types: soprano, alto, tenor and bass.