A "church choir" refers to a group of people who sing together in a church during religious ceremonies, services, or performances to support and enhance worship. Full definition
At one point the religious right started singing hymns in the hallways so the two of us, having sung in church choirs for decades, joined in with them. (yonkerstimes.com)
Not long after the Civil War, John Wesley Work, an African American church choir director and scholar in Nashville, Tennessee, realized that the rising generation of black southerners might best understand the importance of spirituality by learning the songs their ancestors sang during the days of.... (firstthings.com)
We Read Frederick Douglass as a Community: One Voice, Three Languages, brings Douglass's speech in English, Haitian Creole, and Cape Verdean Creole — there will also be songs from local church choirs (Brockton) (bostonmamas.com)