• Music

• 1.

American Theatre Organ Society Inc-Central Indiana Chapter

ATOS is an international organization comprised of volunteer members committed to helping preserve a Dedicated to the restoration, preservation and presentation of the theatre pipe organ and its genre.

• Music

• 2.

Ohio Valley Chapter of American Theater Organ Society

ATOS is an international organization comprised of volunteer members committed to helping preserve a 2025 Convention Home NEW Member 35 Special See All News AMERICAN THEATRE ORGAN SOCIETY 2024 American Theatre Organ Society Inc.

• Music Groups, Bands, Ensembles

• 3.

River City Ringers

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• Music

• 4.

Red River Theatre Organ Society

The Red River Theatre Organ Society is dedicated to playing and preserving theatre organs in the valley.

• Theater

• 5.

Atlanta Chapter of the American Theatre Organ Society Inc

Atlanta Chapter of the American Theatre Organ Society Great Music.

• Music

• 6.

Red River Valley Chapter of the American Guild of Organists

Chartered on April 9, 1945, the RRVAGO strives to promote the pipe organ and its art form.

• Singing Choral

• 7.

River City Chorale

The Chorale's mission is to inspire and enrich our community through high-quality and diverse choral performances.

• Alliance/Advocacy Organizations

• 8.

AMERICAN THEATRE ORGAN SOCIETY

ATOS is an international organization comprised of volunteer members committed to helping preserve a 2025 Convention Home NEW Member 35 Special See All News AMERICAN THEATRE ORGAN SOCIETY 2024 American Theatre Organ Society Inc.

AMERICAN INSTITUTE OF ORGANBUILDERS

SCIENCE ART MUSIC INTEGRITY The American Institute of Organbuilders is a professional association made up of pipe organbuilders organmaintenance technicians and those in allied professions supporting the pipe organ industry.