Free Harmonic DAW + Paid Pro

The Most Advanced Piano Roll

Start with Arbit, the free harmonic DAW. Arrange with audio and MIDI clips, link notes into dynamic hierarchies, write progressions with pure ratios, load instruments and effects — then upgrade to Arbit Pro for sampling, vocals, and a video media machine whose visuals read your score.

Free/Paid — Free workstation + paid Pro

Download Arbit See Arbit Pro Why This Matters

Dynamic harmony vs everything else

Every other piano roll treats notes as fixed points. Arbit treats them as relationships.

Every Other Piano Roll

Fixed frequencies, fixed compromises

Notes are grid positions with one frequency each
12-TET: every interval is out of tune — nothing is pure
No awareness of harmonic context between notes
Microtuning is manual, per-note, disconnected
Can't retune audio to harmonic relationships

Arbit

Notes as relationships

Every note's frequency comes from its link chain
Pure ratios from the harmonic series — any interval, any harmonic
Harmonic context is the note — move a master, everything follows
Linking is the tuning — one system, automatic
Samples and vocals can participate in the same harmonic graph (Pro)
A full DAW free — clip arranger, audio + MIDI clips, mixing; Pro adds samples, vocals, and score-reactive video

Watch a link form

Link, tune, hear

Shift-click to create a link. Double-click to cycle harmonics. Move a master and watch every slave follow. The frequency is the relationship.

See the MIDI editor

Early Access

Download Arbit directly. Free unlock happens inside the app on first launch.

Download the installer for your platform — No account or invite code is required to install
Unlock Arbit Free with email, or enter an Arbit Pro license code — Free stays free; Pro unlocks the production feature set

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