Great Organ - Digital Organ Software Platform

The new standard in Digital Virtual Organ technology.


English, German Afrikaans

If you would like to see Great Organ in your own language and are able to assist us with translation, please contact us at support@digitalvpo.com




Simple uncluttered touch screen friendly interface



Once you have installed the software, gone through the simple steps to configure and learn your MIDI hardware, you can run any installed organs by choosing them from the carousel or list view. Select organ, and click Start.

Your hardware and MIDI configuration are automatically synchronized as individual organs are loaded. This synchronization, allows the user to start playing a correctly configured organ from first run and you only have to change settings in ONE place. Usually no additional configuration is required for each organ, thus allowing you to spend more time playing and not worrying about settings.

The organ configuration can be reset to factory defaults at any time, and missing or damaged configuration files can be restored by the software as well as backed up and restored. You should hopefully never need to worry about misconfiguring your organ software again!


Example single screen organ display



Natural interactive feel to console. No menus, toolbars or pages of complex settings and busy user interface to master. Looks like an organ, works like an organ! Built for full touchscreen and advanced gesture support but will also allow full mapping of hardware MIDI stops.


Simple MIDI configuration



After answering some simple questions about your console, the software can then learn each keyboard and pedalboard, using a quick and easy process.



Pistons can be rapidly learned, including the custom control pistons which give the organist access to some of our powerful playing aids


Advanced audio control


Audio and latency control



Adjustable sample conversion quality, use of multiple processor cores, adjustable latency, and audio output control


Surround and stereo audio balancing, with fine control over surround processing balance.


Midi adjustment


Control over midi devices, master tuning and expression sensitivity.


Environmental processing - Including the all new native convolution surround reverb





The most advanced 2 and 6 channel software convolution reverb system currently available. Users may also use their own standard impulse responses.


Rank adjustment



Ranks can be individually adjusted for volume, tone and surround sound position. Surround position changes are effective immediately and don't use additional wasteful surround sound samples!


New Advanced Parametric Equalizer



No need to fiddle with samples to adjust the audio output to match your room and amplification, use the correct tool for the job, and it's built in as standard!


Music control



High resolution music display with simple librarian and search features. Performance and practice sessions modes which allow stop registrations to be sequenced against a individual pieces of music

Programming of stop sequences is as simple as selecting the stops and pressing a single button. Sequences are recalled on opening the piece of music and can be navigated by pressing just two buttons or programmed pistons



Great Organ - Key features

The complete out of the box virtual organ software solution

  • Built from scratch, without compromise, using the very latest developments in cutting edge software technology
  • Iteratively built and designed with collaboration with its user base over the last 5 years, and under continuous development and improvement
  • Due to highly optimized efficient code and memory usage, this software runs on a fairly modest Windows x64 based computer, without need for special hardware, save for a fairly modest dedicated sound card.
  • Able to utilize all processor cores, hyper-threading and parallel processing as standard, to make your experience more fluid and responsive
  • Base software and audio engine have zero reliance on slower VST effects. All audio processing is performed natively by the software
  • Intuitive, natural feeling, modern user experience. Highly sophisticated and powerful functionality, without being unnecessarily complicated to use
  • Crystal clear studio quality audio in either Stereo or true 5.1 Dolby surround sound output (5.1 requires suitable sound card and amplification)
  • Super low latency 32 bit audio processing (with auto up-scaling for sample sets of lower resolution)
  • Several different built in reverb solutions, including 2 and 6 channel highly configurable Convolution reverb, AS STANDARD!
  • Built in music library display (two or more screens), and standalone interactive music library display application.
  • Ability to store registration changes against items from the music library. Opening a piece of music can also set the initial registration automatically, and accessing the next registration change in the recorded sequence is at a touch of a single button.
  • All stops, couplers and other console functions, including transpose, music control, keyboard reassignment, piston control etc, can be mapped to external MIDI input commands
  • Extensible modular architecture, offering a full programmers API, and also ability to interact with the organ from non-native technologies and just about any programming language.
  • User interface uses the full power of your graphics card (GPU) hardware acceleration to free up the computer to process the audio and software loads.
  • Compatible with a wide array of MIDI hardware, custom built consoles and factory MIDI hardware.
  • You can use your own favourite VST 2.4 Plugin effects, directly in the software without fuss or complex configuration
  • Record and playback MIDI recordings made on console, and optionally write 32 bit lossless recorded audio file (.WAV), 2 or 6 channel
  • Proven time and again to be the easiest and most powerful virtual organ platform to create and build new instruments with (using specially designed easy to use tools).

At DigitalVPO, we ripped up the rule book and preconceived notions of how a piece of digital organ software should work. We decided to start with a blank canvas and designed the software to respect the physics of how a real organ works, from scratch, whilst using the most advanced software development techniques and audio technology currently available to deliver this.

We started at the point of not only considering what we as organists want from a virtual organ, but also discussing this with other organists from around the world, who fed into the initial design and development direction of this software. It became quite clear that some were frustrated with existing software offerings and required something more natural, simple to use and more deliberately focussed on what an organist might typically need from their console, and more importantly, what they DID NOT need!

We have tried to keep the spirit and specification of each instrument as close as possible and as natural to use as the real thing. Whilst each organ does include a number of features that are not found on the original console, such as MIDI recorders, they do feature on each disposition from a usability point of view. Usability is paramount over absolute historical accuracy in our view, especially as the user interface has already had to be compromised in some way to fit on to computer screens!

We try wherever possible NOT to artificially manipulate the sound of the raw samples, save for noise reduction, leaving the tuning as recorded wherever possible. You may find the odd pipe slightly out of tune. If so, let us know and we will fix it!
If you have your own VST 2.4 64 bit reverb, equalizer or other audio effects, you can use these in conjunction or instead of those already built in as standard. VST plugins by their very nature cannot process audio as quickly as our native processing, so please use sparingly.


We have not used external tools or plugins from other third part vendors in our softwre AT ALL. We took the difficult route and wrote our own brand new system, simply because there was nothing out there that met our requirements, was performant enough or required much bending out of shape. Whilst this has added a significant amount of time to our software development schedules we feel that this investment has been more than justified in the resultant audio output quality.

Another consideration for organists is digital music storage and display, and not having stacks of often irreplaceable scores and manuscript lying about the console! Our built in music library and viewer stores your scanned music and allows you to bring up any piece of music in your library at the touch of a button, in fact just like any other score viewer. As part of the music viewer, and with students in mind, we added the facility of adding practice lists and performance running lists to the viewer, so music can be recalled sequentially at any point from a user specified running order. However, a dumb music display would have been a wasted opportunity, so we have recently added a much requested feature, which is the ability to link the registrations to the sheet music and performances. Whilst this doesn't automatically select your registration sequences for you as you are playing by some magic, it does allow you to record any number of registration sequences for a piece of music, which can then be recalled with a single button or piston press. When a piece of music or event has stop registrations sequenced against it, when opening that piece of music, the organ will automatically select the starting registration, with the organist only needing to press NEXT to select the next registration in the sequence. The music viewer application can also be run standalone, even on another monitor and can still offer this control over the organ registrations when running in this mode. Programming registrations into registration sequences is as easy as pulling the stops you require and pressing one button to record that registration setting.

This software is under constant development with a track record of regular updates which address user issues, bugs and suggested improvements. Whilst we make no warranties in terms of service level agreements, our existing user base have seen a consistent program of improvement, upgrade and features they have asked for being incorporated. We do not take our users, or our support of users for granted, and all issues and suggestions raised by our users are listened to and almost always implemented if considered viable.

This software DOES NOT have ANY internet connected capability, and does not phone home or pass information from your computer of any kind. This is by design, and for your safety and security as much as ours. We have gone to extensive lengths to not only make the software difficult to tamper with, but also taken the same cautious approach scanning everything we upload to our website for malware. This software does have some additional natural defenses against intrusion and reverse engineering so you can be assured our software is as safe as it can be from any malicious or unwanted intrusion or attack. Our website is also encrypted for your protection and security, and all traffic is encrypted using our publicly signed SSL certificate (Always check the padlock in your browsers address bar).



How to license the software

Our software platform has one version. It comes without restriction, any limits on polyphony, no expensive hidden optional extras, no extra charge for reverb Impulse responses and comes ready to run, complete. All you have to do is go through the simple configuration, start, and enjoy playing!



We need your feedback !

This project is largely driven by user requests and feedback so your views are really important to us.

If you find something not working or you don't like, please come and talk to us first, as the chances are we can probably do something about your issue quickly.

Almost every issue encountered by users so far has had a resolution, so please don't be shy. We are only as good as the feedback we get!!

As this software is under a constant release cycle of regular updates, you may be surprised at how quickly we are able to incorporate all feedback received.


For issues with the software, licensing, or feature requests :-

support@digitalVPO.com