Features List

The Classic Organ Works Organ Control System may well be the most feature-rich on the market. The features provided by specific components of the system are listed with those components. First, some general features.


Some features of the CLASSIC Pipe Organ Control System are as follows:

  • Able to integrate multiple consoles, controlling one or more organs;
  • highly-integrated, minimizing component count and simplifying installation;
  • flexible, allowing it to be tailored to virtually any pipe-organ configuration;
  • fully MIDI compatible, both for record/playback and support of MIDI sound modules;
  • reliable by design and through component specifications;
  • standard, generally-available parts, minimizing repair time and difficulty;
  • rugged; magnet drivers all have internal overload and short-circuit protection;
  • chest commons protected by self-resetting fuses;
  • OrganWorks software to help the customer identify and document all the technical details of the organ;
  • backward compatibility of new system components allowing them to be used on older systems;
  • software upgradable, to make changes or add new features;
  • able to connect to and integrate digital stop generators via MIDI (Ahlborn Archive or Viscount CM-100) or serial (Walker Technical).


Some Combination Action Features:

  • Multiple piston memories (up to 254 on Legacy systems, unlimited on Maestro systems).
  • Up to 16 "quick access" programmable Memory-Level-Select pistons. (Also available via ALT+GEN.)
  • Up to 8 "quick access" programmable MIDI-stop Memory-Select pistons.
  • User programmable Crescendo sequence; up to 4 independent Crescendi.
  • Up to 8 user programmable Sforzando reversibles.
  • Up to 8 user programmable Ventils (reversibles).
  • Up to 8 lighted control reversibles with indicator lights (Zimbelstern, etc.).
  • Up to 48 coupler reversibles.
  • Up to 16 user-programmable stop reversibles.
  • Settable Tab Reversibles for special stops.
  • 'On', 'Through', 'To', and 'Pizzicato' couplers as well as 'unison-off'.
  • Save-and-Restore Piston, Crescendo, Reg. Sequencer settings, etc., to/from a Sequencer or PC via MIDI, or Internet (Maestro systems).
  • Programmable pistons and toe studs.
  • Recall - allows return to registration prior to a piston press.
  • 4 x 2-digit numeric-display interface (for Crescendo stage, Registration Sequencer stage, Memory level, Transposer, and Set-up functions). Additional 2 or 3 digit displays optional.
  • Up to 254 MIDI-stop memories.
  • 250 stage programmable Registration Sequencer, using UP/DOWN pistons, with editing features, for recital convenience; switchable to "piston sequencer" mode.


Display Features:

  • VFD interface on CTRL-310 control panel module.
  • Numeric Displays for Memory Level, Registration Sequencer, General Piston Number, Transposer, Crescendo stage,etc.;
  • Bargraph displays for Crescendo and Swellshoe position indication;
  • Control Interface on touchpad computer, smartphone, or PC, connected via WiFi (Maestro systems only).


MIDI Features Menu:

For a full list of MIDI features and considerations for implementation click here


Coupling Features

  • Full inter- and intra-manual coupling (sub, unison, and super) between all divisions.
  • Auto-pedal function plays low-octave pedal key corresponding to lowest note played in lower octaves of the Great (or other manual).
  • Solo coupler plays high (melody) note from another keyboard or division.
  • 12-step Transposer controlled via rotary switch, or UP/DOWN (multi-function) pistons and numeric display, with "in-use" indicator light.
  • Full internal logical processing of traps and effects for theatre organs.


Control Features

  • High-speed serial output of key, stop, etc. data to PCC's or Voice Generators (Legacy Systems).
  • Very high speed output of key, stop, etc. data to chambers via Ethernet or WiFi (wireless) in Maestro systems.
  • May control any combination of organ pipes, and digital sample playback organ voice generators, MIDI-connected organ voice generators (such as the Viscount CM-100), or computer-based voice generators (such as Hauptwerk).
  • 3 levels of locks on combinations to avoid tampering or inadvertent changes.  User password control in Maestro systems.
  • Includes provision for dual console installations.



  • All control connections to the board are pin headers compatible with MAS-CON IDC connectors or Molex crimp-type connectors.
  • Keyswitch connections may be conventional wired, or MIDI (velocity sensing), or MIDI over USB in Maestro systems.
  • MIDI connections are via standard 5-pin DIN connectors.
  • Ethernet connections by RJ-45 jacks (Maestro systems).


Setup/Diagnostic Features

  • Extensive set-up capability to aid the builder/organist in configuring the software to suit his requirements.
  • Extensive built-in diagnostics aid the organ builder/technician in diagnosing and correcting wiring errors, electrical faults, etc.
  • Compatible with "Organ Assistant" software for Windows, which allows backup of organ set-up and memory data.
  • Direct remote access via the Internet (Maestro systems) for diagnostics, re-configuration, or software upgrades.



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