For three centuries, every keyboard made D♯ and E♭ the same note.
The mmk changes that. For the first time in history.
The suite is online — the first credits are on the house. The physical keyboard is in development; leave your email to follow it.
"The only keyboard in the world where D♯ and E♭ sound different. Where F𝄪 and G are distinct notes. Where enharmony ceases to exist — because in the pure nature of sound, it never did."
— An orchestral bassist · 35 years in the pit
Equal temperament — the tuning system used by every piano, organ, and digital keyboard since the 18th century — erases a small but audible difference between notes that are mathematically distinct. Professional orchestras have always compensated for this. Until now, no keyboard let you play those differences directly.
From the smallest digital piano to the most expensive concert grand — one key. Two names. One frequency. Equal temperament has no room for the truth.
Two physically separate zones. Two mathematically exact Pythagorean frequencies. The Pythagorean comma — known for millennia, playable for the first time on a keyboard.
The instrument itself, in your browser: the same keyboard the suite uses, limited to two octaves. No installation, no plug-ins. Play it, or load one of the short examples and hear the Pythagorean comma.
The .mmf format — Music Motion Format — is the thread that connects everything. Unlike MIDI, it stores exact Hz frequencies. It is the only format that can represent the Pythagorean comma in a recording.
The browser keyboard you just played. 35 Pythagorean pitches, 19 instruments, .mmf recorder, 12 languages. The foundation of the ecosystem — and always free.
The full suite, running in your browser at musicmotionsuite.com. Write, hear and mix in Pythagorean tuning — the Score, the Console, the Player and the Coach all sound through the Cosmic Keyboard. The first credits are on the house.
Open the suite →USB-HID, RP2040, two octaves, three zones per black key — the Pythagorean comma under your fingers. It is a plan, not a product: it has to be built first. Leave your email and I will write when there is something to show.
The physical keyboard is in development. No date and no pre-orders — leave your email and you will hear from me when there is something real to show.
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