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The mission of the ACDA is to inspire excellence in choral music through education, performance, composition, and advocacy.

william copper

Location: Virginia, USA
William CopperPresident, Hartenshield Group, Composer, Breeder of purebred Berkshire pigs.  Specialist in the beauties, challenges, and productive complications from writing music for singing in just intonation.   An example of pitch graphs produced for new compositions may be found at

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