Mssiah Mono Synthesizer Controller is a real-time MIDI editor designed to provide comprehensive control over every parameter of the Mssiah Mono Synthesizer. Available as both a standalone application and a VST instrument for Windows, it offers musicians and producers an intuitive platform to fine-tune their synth sounds with precision and ease.

This software extends the capabilities of the original hardware by including additional features such as a preset manager, which allows users to save, organize, and recall custom settings efficiently. The seamless integration between the MIDI editor and the synthesizer enhances workflow, making sound design more accessible and flexible for creative experimentation.

The Mssiah itself is a MIDI cartridge created for the Commodore 64, featuring a collection of music applications that launch instantly upon insertion and system startup. This unique combination of vintage hardware and modern software provides a distinctive environment for music production, blending classic synthesis with contemporary editing tools.