Some MPE implementations hand you three fixed destinations and call it done. discoDSP took a different route with Corona 7, released in August 2026: per-note pitch bend, pressure, and timbre arrive as modulation matrix sources, meaning you decide where they go. For a synth built around routing flexibility, that's the right decision — and it's a free upgrade for Corona 6 owners.
The Architecture Behind It
Corona is a hybrid virtual analog and wave synthesizer, and its layout will feel familiar to anyone who has spent time with classic German rack synths. Three VA/wave oscillators feed 16 combine modes, which then run into dual zero-delay feedback filters. Three envelopes, two LFOs, an eight-destination modulation matrix, a built-in effects chain, and a 32-step arpeggiator round it out.
The important detail for expressive players is that eight-destination matrix. With MPE dimensions available as sources, you can send finger pressure to filter cutoff on one patch, to oscillator combine depth on another, and to effects send on a third — without the developer having pre-decided the answer for you. The MIDI menu adds MPE Mode, Zone, and Pitch Bend Range settings, which covers the practical configuration side.
What Else Landed in Version 7
MPE is the headline for this audience, but Corona 7 is a substantial update across the board:
Sequencer arpeggiator mode with step recording and MIDI export. The export function is more useful than it sounds — it lets you develop a pattern inside the synth and then move it into your DAW's piano roll for further editing, including per-note expression editing in a host like Bitwig Studio or Cubase.
Super 7+ unison mode, modelled on the JP-8000 supersaw. Unison and MPE have a complicated relationship — stacking detuned voices per note eats polyphony fast — but Corona's 32-voice ceiling gives you some room to work with before you run out.
8x oversampling with Draft Playback. Oversampling improves the high end at the cost of CPU, and Draft Playback lets you work at lower quality while composing and switch to full quality on render. On a system already handling dense MPE streams, that trade-off matters.
Live modulation display across the panel and an Effects Lock that holds the effects section across preset changes. The modulation display is genuinely helpful when learning how an MPE patch responds — you can watch pressure and timbre move controls in real time rather than guessing.
Corona 7 is available now for €149 from the discoDSP store, with the upgrade free for existing Corona 6 users. A full manual is available as a PDF.
Matrix Routing Changes How You Patch
If you're used to MPE synths where the three dimensions are pre-wired, a matrix-based approach requires a slight shift in thinking. The dimensions no longer have inherent meanings — they have the meanings you assign them, per patch.
A few routings worth trying on Corona specifically:
Pressure → combine mode depth. Corona's 16 combine modes are where much of its character lives. Modulating combine depth with pressure gives you a per-note timbral shift that doesn't just sound like a filter opening, which is the default outcome on most synths and the reason so many MPE demos sound similar.
Timbre (CC74) → oscillator detune or wave position. The Y-axis is best used for something that changes the harmonic content rather than the brightness. Reserving it for wave scanning keeps it distinct from pressure.
Per-note pitch bend → filter tracking offset. An unconventional one, but sending a small amount of bend to filter tracking makes vibrato feel like it's moving the whole voice rather than just the pitch, which reads as more acoustic.
The key discipline with matrix routing is restraint. Eight destinations sounds generous until you've assigned all of them and can no longer tell what any given gesture is doing. Two well-chosen MPE routings almost always play better than five.
Where This Fits in the Current Landscape
August 2026 has been a notable month for MPE arriving in established plugins. Steinberg HALion 7.5 added support in its anniversary update, Ultra shipped MPE in version 1.1, and Sound Radix Radical1 Solo added MPE routing and pitch bend range settings to its free additive synth.
What distinguishes Corona 7 in that group is the price-to-depth ratio for existing owners: nothing. Free major upgrades have become rare enough that they're worth calling out when they happen, particularly when the upgrade includes a feature that plausibly justifies a paid version bump elsewhere.
For anyone with a Corona license sitting unused since the previous version, this is a reason to reinstall and plug in a controller. And for players evaluating a first "deep routing" MPE synth, the combination of a conventional VA architecture with per-note sources in the matrix makes Corona an unusually approachable place to learn how expressive modulation actually works.