Most synths start with a waveform and carve it down. This one starts with the secret chord that lives inside every note.
BK Harmonic is an additive synthesizer that builds sound from individual overtones — then gives you tools no other synth has to shape, scan, and filter them based on musical harmony.
What makes it different
Fold crossfade — Sweep through harmonic layers. Not a filter. Not a waveshaper. A scale-informed harmonic sculpting tool. Fold instead of filter.
Overtone scanner — An arpeggiator for harmonics. Steps through individual partials with triangle, saw, or random patterns. Lock it to a scale and it only visits partials that belong.
Harmonic gate — Reinforces partials whose pitch class matches your chord. Suppress the rest. The timbre follows the harmony.
51 scales — From major and minor to maqam, raga, and Messiaen modes. The scanner and harmonic gate are scale-aware.
Per-voice polyphonic filter — Each note gets its own filter with its own envelope. Not paraphonic.
Mod matrix — 6 sources (LFO 1, LFO 2, Env 1, Env 2, Velocity, Mod Wheel) x 26 destinations. Assign with inline gear icons.
Formats
| Platform | Format | Status |
|---|---|---|
| macOS | AU (Logic, GarageBand) | Beta |
| macOS | VST3 (Ableton, Bitwig, Reaper) | Beta |
| Windows | VST3 | Beta |
System requirements
- macOS 11+ (Apple Silicon + Intel)
- Windows 10+ (64-bit)
- Any DAW that supports AU or VST3
Download
macOS note: The plugin is not yet signed with Apple. Right-click the plugin file and select Open to bypass Gatekeeper on first launch.
Installation
macOS AU: Unzip and move BK Harmonic.component to ~/Library/Audio/Plug-Ins/Components/
macOS VST3: Unzip and move BK Harmonic.vst3 to ~/Library/Audio/Plug-Ins/VST3/
Windows VST3: Unzip and move BK Harmonic.vst3 to C:\Program Files\Common Files\VST3\
Restart your DAW. The plugin appears as “BK Harmonic” under the Synth/Instrument category.
Activation
- Open the plugin in your DAW
- Enter your license key
- Done — works offline after activation
License keys are available with purchase or included with Beat Kitchen residency. Learn about residency →
Pricing
The price goes up as we get closer to the full release. If you buy now, your price stays where it is.
Get notified when purchasing opens →
Try it first
The full synthesizer runs free in your browser — same engine, same presets, same sound. No download, no signup.
By purchasing or installing, you agree to the license agreement. "BK Harmonic Synthesizer" is a working title and may change.
