
1) Barbershop music 2) West End musical
Found on
https://www.crosswordclues.com/clue/barbershopera

Barbershopera is a London-based theatre group that creates comedy musicals in a cappella four-part harmony. The group is noted for its unique format, as all the shows feature three male performers and one female performer and the stories of the shows often use this aspect to inform the comedy content of the shows. To date, the group have written t...
Found on
http://en.wikipedia.org/wiki/Barbershopera
No exact match found.