Barbershop music in tags or codas, or when some appropriate embellishment can be created. One characteristic feature of barbershop harmony is the use of what is known as "snakes" and "swipes." This is when a chord is altered by a change in one or more non-melodic voices. Occasional passages may be sung by fewer than four voice parts. Barbershop music is generally performed by either a barbershop quartet, a group of four singers with one on each vocal part, or a barbershop chorus, which closely resembles a choir with the notable exception of the genre of music. According to the Barbershop Harmony
Barbershop music Harmony Society, while most female barbershop quartet singers are in either Sweet Adelines International or Harmony, Inc. Similar organizations have sprung up in many other countries. Most barbershop quartet singers also choose to sing in a chorus. A barbershop chorus sings a cappella music in the barbershop style. Most barbershop choruses belong to a larger association of practitioners such as the Barbershop Harmony Society, Sweet Adelines International LABBS (Ladies Association of British Barbershop Singers), BABS (British Association of Barbershop Singers) or Harmony, Inc. In the Barbershop Harmony Society, a chorus is the main performing aspect of each chapter. Choruses may