Harmony Sweepstakes A Cappella Festival - Annual competition for vocal harmony groups

http://www.harmony-sweepstakes.com/index.php

Ring is a mixed voice barbershop and contemporary a cappella quartet based in New York, NY. Since their start in January 2023, they have taken the barbershop world by storm, havin
The Harmony Sweepstakes A Cappella Festival is the premier showcase for unaccompanied vocal harmony music. The annual national a cappella competition draws from hundreds of a capp

Singers.com - List of Vintage Harmony Groups

https://www.singers.com/group/vintage-harmony/

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