Five years after the original Osmose redefined what a keybed could feel like, Expressive E has released a controller-only edition of the instrument. The Osmose CE became available on April 29, 2026, and it marks a deliberate shift in strategy for the French company: instead of pairing its touch- and pressure-sensitive keybed with a built-in synthesis engine, the CE ships as a dedicated MPE (MIDI Polyphonic Expression) controller designed to drive external plugins and hardware.

What's different from the original Osmose

The first Osmose paired its keybed with the EaganMatrix synthesis engine, the same physical-modeling core found in Haken Audio's Continuum. That combination made the Osmose a self-contained instrument, but it also meant the price tag reflected a full synthesizer, not just a controller.

The Osmose CE removes that engine entirely. In its place, Expressive E ships Ctrl-e, a free companion application built in collaboration with Synapse Audio, Applied Acoustics Systems (AAS), Kilohearts, GForce, Dawesome, and Vital. Ctrl-e handles the mapping layer between the keybed's gestures — key position, pressure, and side-to-side motion — and whatever software instrument sits downstream. Critically, every factory preset in Ctrl-e ships pre-mapped to the keybed's gesture vocabulary, so musicians can plug in and start playing expressively without manually assigning MPE dimensions to each parameter.

At $999, the Osmose CE undercuts the original by a wide margin, positioning it as an entry point into high-resolution expressive playing rather than an all-in-one workstation.

No subscription, no lock-in

One detail worth calling out: Ctrl-e is included at no extra cost, with no subscription required. That's a meaningful decision in a market where companion software increasingly comes gated behind recurring fees. Because Ctrl-e works with plugins from AAS, Kilohearts, GForce, Dawesome, Vital, and Synapse Audio out of the box, Osmose CE owners get a reasonably deep library of MPE-mapped sound sources on day one, with the option to expand into any other MPE-compatible instrument as their setup grows.

Why this matters for the MPE ecosystem

The Osmose CE lands at a moment when MPE support has become close to table stakes among serious synth developers. Arturia has expanded MPE and MTS-ESP tuning support across its V Collection instruments, including the AUGMENTED line and Pigments. Native Instruments' Absynth 6 now responds to MPE controllers like the ROLI Seaboard or the original Osmose. And DAWs from Bitwig to (soon) Pro Tools are building deeper per-note expression handling directly into their MIDI editors.

Against that backdrop, a controller-first product like the Osmose CE makes sense: the software side of the MPE equation is maturing fast enough that a dedicated, well-mapped keybed can be more valuable to a working musician than another bundled synth engine. It also lowers the barrier for producers who already own MPE-capable plugins but have been playing them from a standard, non-expressive keyboard.

The bigger picture

MPE controllers have historically asked buyers to commit to a fairly narrow ecosystem — Roli's Seaboard for Equator, Haken's Continuum for EaganMatrix, and so on. The Osmose CE's approach, leaning on Ctrl-e as a neutral mapping layer across six different plugin developers' catalogs, points toward a more open, controller-agnostic future for expressive playing. Combined with hardware evolutions like the third-generation Ableton Push and Novation's MPE-enabled Launchkey Hybrid, 2026 is shaping up as the year MPE stops being a niche feature and starts becoming a baseline expectation for serious controllers.

For musicians and sound designers currently shopping for their first expressive keybed, the Osmose CE is worth a close look — not just for the hardware itself, but for what it signals about where the rest of the industry is headed.