Welcome one and all to the ATOS website

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For those that are new to the theatre organ world, welcome. I hope that you will take some time to browse around the various pages of our website to discover more about these amazing instruments. Many of these instruments are approaching a century old! Not only is the music grand, but the theatres that many of them are housed in are absolutely gorgeous.

While here, learn about the Mighty Wurlitzer, Barton, Kimball, Robert-Morton, Page, and other companies that created thousands of instruments. The theatre organ is a very versatile instrument, not just for accompanying silent movies. There are also theatre organs in restaurants, skating rinks, dance halls, and arenas.

ATOS has several chapters throughout the U.S., as well as around the world. We work on promoting the instrument, encouraging chapters and theatre to present concerts and silent films, develop young artists and technicians, teach restoration techniques, and most of all, have fun with the instrument and the music.

Enjoy your time here. Find an instrument in your area. Enjoy listening to the wonderful music playing on ATOS RADIO. Visit one of the many events available around the world. Many of these can be found on our Events List.

I hope you enjoy the music, and if you are not a member, I hope you will join us as we celebrate this wonderful instrument. We have lots of great information here regarding this instrument. Enjoy the sites and sounds of the mighty theatre organ!

Dave Calendine

Chairman of the Board

July 2018

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Recent News & Articles
  • January 16
    The ATOS Endowment Fund assists ATOS chapters or other not-for-profit organizations engaged in theatre pipe organ programs or projects which will have a lasting impact on the preservation or presentation of the theatre pipe organ as a historically American instrument and musical art form; projects or programs of particular historical or scholarly merit; and other projects or programs as approved... more
  • January 14
    This stylish sport shirt is 100% cotton and boasts a fun organ music and note pattern, as well as the ATOS logo on the pocket. Available to everyone, you may order online now, or add to your convention registration for delivery at the Indianapolis Convention. Available in sizes XS to 5XL, $49 for XS - XL $54 for 2XL- 5XL Order now! (Shirt orders will close on May 1, 2020 to allow for adequate... more
  • December 31
    Make plans now to attend the 2020 annual convention; this year in Indianapolis. Registration is now open. (Opened at 12:00 midnight (PST) on New Year's Eve.) 2020 Convention more
  • December 18
    December 2019 Hello! I am writing to tell you my experiences with one of the most exciting and significant programs of ATOS and to ask you to provide financial assistance to ensure this program continues and grows. When I was 14 years old, I spotted an ad in The Theatre Organ Journal for the ATOS Summer Youth Adventure and attended my first of 9 years of this exciting program. My first surprise... more
  • November 10
    Through the diligent work of Steve Worthington, Alexa now understands how to play Theatre Organ Radio without going through a third party, like Tune-In radio. "Alexa, Open Theatre Organ Radio" will launch our AAC 128k stream on your device Note: Some people have been experiencing issues getting the skill to work. If you have the latest Alexa version according to the documentation "Alexa, Open '... more

Recently Added Events

February 1
4/24 Wurlitzer - Trinity Church Facilities

March 27
3/12 Composite - Music Museum House

March 28
3/12 Composite - Music Museum House

April 4
4/79 Casavant other - Detroit Film Theatre

April 5
4/79 Casavant other - Detroit Film Theatre