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 arranging advantage. A music category judge can assess an arrangement by ear or eye to test whether it is 'barbershop', and hence valid for use in competition. The BHS and its affiliated associations run courses in arranging at 'Harmony University' (formerly 'Harmony College'), which are open to members. Relevant manuals: "Theory of Barbershop Harmony", "Barbershop Arranging Manual" and "Contest and Judging Manual" are published by the BHS. Barbershop arranging Barbershop arranging is the art of creating arrangements of barbershop music. The Barbershop Harmony Society (BHS) and Sweet Adelines International (SAI) have prescribed rules that dictate what is an acceptable arrangement, particularly