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General| Brand | Johannus |
|---|---|
| Model | Opus 20 |
| Category | Musical Instrument |
| Language | English |
Details the typical console features, including manuals, accessories, and keyboard touch.
Details how to open and lock the organ's wooden roll-top cover using the key.
Describes the 32-note AGO pedalboard, its magnetic reed switch system, and installation tips.
Provides instructions for connecting the organ, emphasizing voltage check and grounded outlets.
Explains how to switch on the organ, the pilot lamp, and the initial computer circuit initialization.
Details the controls specific to the Opus 5 AGO model with a diagram and numbered list.
Details the controls for Opus 10 and 20 AGO models, noting their identical layout.
Details the controls for the Opus 30 AGO model, which has a more extensive control layout.
Explains the function of unison couplers and details specific couplers like Choir-Great, Swell-Great, etc.
Describes the function of tremulants in vibrating organ sound, noting independent division tremulants.
Explains how intonation affects organ sound and mentions the two available types: romantic and baroque.
Describes flue pipes, their types (open/stopped), and categories like Principals, Strings, and Flutes.
Explains how reed pipes work and categorizes them by resonator type (conical, cylindrical, short).
Explains how the main VOLUME control adjusts overall volume, affecting each keyboard.
Details the function of the left expression pedal for controlling Great and Pedal volumes simultaneously.
Details the function of the right expression pedal for controlling Swell and Choir volumes simultaneously.
Explains the nature of thumb pistons and details specific ones like WM, MT, MB, CF, and FA.
Explains how to adjust the organ's temperament in quarter steps using the PITCH control.
Details how to transpose the organ's pitch by half steps using the TRANSPOSER control.
Describes the digital acoustics feature for reverberation and its adjustable volume.
Explains the MEMORY LOCK switch's role in saving and modifying stored registrations.
Lists and describes the functions of various toe studs, including couplers, TUTTI, and capture pistons.
Explains the MIDI IN port for receiving MIDI-codes from other instruments.
Describes the MIDI MOD. port as a programmable MIDI-output for expander modules.
Details the MIDI SEQ. port as a non-programmable MIDI-output for data dumps and sequencers.
Explains the AUX IN port for amplifying external audio devices through the organ's speakers.
Explains the PHONES connection for stereo headphones, noting volume regulation.
Describes the widely used equal temperament, allowing playability in any key.
Explains Werckmeister III temperament, noting its character and suitability for baroque music.
Details Meantone temperament, its pure thirds, and its historical context up to 1650.
Defines free combinations as user-programmable stop combinations stored in memory.
Provides step-by-step instructions on how to program personal registrations into the capture system.
Explains how to recall previously stored personal registrations from the capture system.
Explains how the General Crescendo allows adding stops gradually from soft to full organ.
Defines MIDI (Musical Instruments Digital Interface) and its role in connecting musical instruments.
Guides on connecting expanders to the organ using MIDI stops and channels.
Explains how programmable MIDI allows access to expander module voices/patches via MIDI stops and channels.
Provides step-by-step instructions for manually programming MIDI stops with channels and patch numbers.
Provides instructions on how to clean the organ's wooden cabinet and keys.
Presents a table detailing technical specifications for various Opus models.
Provides cabinet dimensions and furniture details for different Opus models.
Lists MIDI implementation details for the Opus 5 AGO model.
Details MIDI implementation for the Opus 10 AGO model.
Details MIDI implementation for the Opus 20 AGO model.
Details MIDI implementation for the Opus 30 AGO model.
Shows sample stop combinations for the Opus 5 AGO model.
Provides spaces for users to record personal registration settings for the Opus 5 AGO.
Shows sample stop combinations for the Opus 10 AGO model.
Provides spaces for users to record personal registration settings for the Opus 10 AGO.
Shows sample stop combinations for the Opus 20 AGO model.
Provides spaces for users to record personal registration settings for the Opus 20 AGO.
Shows sample stop combinations for the Opus 30 AGO model.
Provides spaces for users to record personal registration settings for the Opus 30 AGO.
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