"Local choir" refers to a group of people from a specific area who come together to sing and perform music as a hobby or for local events. Full definition
The day's activities included a candlelight vigil and performances by local choirs. (news.wbfo.org)
The film, which is set in London, follows a grumpy retired man named Arthur (played by Stamp), who reluctantly joins a highly unconventional local choir after his wife Marion's (played by Redgrave) urging. (shockya.com)
In and around my North Essex constituency, I have sung solos for local choirs and choral societies and sing regularly with a group which specialises in Bach choral works — such as Christmas Oratorio, which we performed last December in Dedham Church. (totalpolitics.com)