choir

noun

• an organized group of singers, typically one that takes part in church services or performs regularly in public:the Baptist choir
• one of two or more subdivisions of a choral group performing together:his famous Spem in alium for eight five-part choirs
• the part of a cathedral or large church between the altar and the nave, used by the choir and clergy.
• a group of instruments of one family playing together:a clarinet choir