Why “harmonic”
Most synthesizers are subtractive: an oscillator puts out a buzzy, harmonically rich wave, and a filter removes the parts you don’t want. That’s a recording-studio way of thinking — you shape sound the way an engineer shapes a signal.
BKS Harmonic flips that around. The harmonic series isn’t just an acoustics fact here; it’s the control surface. Because the overtones above a note are the same thing that gives rise to scales and chords, the synth can work with sound on a musical level — folding overtones into lower octaves, reinforcing a tonic, even identifying what scale you’re playing and snapping the partials to it. A filter sweep happens at the level of frequencies; the moves this synth makes happen at the level of notes.
That’s the whole pitch: a synthesizer that thinks about sound the way the harmonic series does, so the things you’ve learned about theory and the things you do to a sound are the same vocabulary.
[Screenshot needed: full BKS Harmonic desktop UI, default patch, labeled overview — partials matrix, scope, gin/tonic, sculpt, harmonic envelope, filter.]
The layout, in brief
You’ll meet each of these in its own chapter. For now, a map:
- The partials matrix is the heart of it — the grid where you add and remove harmonics by dragging.
- The scope area shows you what you’re building, as a waveform, an FFT, or a string.
- The overtone scan sweeps focus across the partials.
- Gin and tonic are the signature controls — folding overtones down and reinforcing the root.
- Sculpt lets you morph between classic wave shapes and switch to the resonant engine.
- The harmonic envelope gives individual partials their own attack and release.
- Around the edges sit the parts you already know from other synths: a filter, a compressor, envelopes, and LFOs — all of which can modulate almost anything.
What to Practice
- Activate the synth and open it in standalone mode. Play a note and just listen.
- Find the scope area and tap it until you see a waveform. You’re looking at the sound you’re about to spend this guide taking apart.
- Don’t worry about understanding the controls yet. Poke at things. The next chapter starts with the one that matters most.
