A chamber choir is a small or medium-sized choir of roughly 8 to 40 singers (occasionally called "chamber singers"), typically singing classical or religious music in a concert setting.^[1] This is distinct from, for example, a church choir, which sings in religious services, or choirs specializing in popular music such as a barbershop chorus.^{[citation needed]}

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• International Chamber Choir Competition Marktoberdorf, held every two years.