audio unit vst3 macOS · apple silicon + intel windows: soon

your EQ doesn't know what key you're in.

KEYCOMB lands up to 64 narrow bells on the notes of your key and moves them with one fader. boost — the mix leans into the key. cut — the key gets carved out. flip INVERSE and the space between the notes moves instead.

tune the whole mix $49$29 · once see it ↓ pricing ↓

works on any track or bus · ableton · logic · 14 presets in the box

the shape of a key

one fader. the whole key.

this is the comb — every bell on a note of the scale, riding one fader through time. the space between the notes stays untouched. until you invert it.

PLACEMENT ENGINE — LIVE KEY A MINOR

how to read it: each spire is one note of the current key · the ridge is the comb's EQ curve, sliding back through time as the fader moves · it walks the circle of fifths, and every fourth key it flips INVERSE

buy KEYCOMB $49$29 mac now · windows soon · $29 once, launch price

what it actually does

a comb, not a curve.

an ordinary EQ moves regions. KEYCOMB moves notes.

01 · THE GRID

64 BELLS

every note of your key and scale gets its own narrow bell, from sub to air. one fader, ±24 dB, moves all of them. that's the whole interface.

02 · INVERSE

THE SPACE BETWEEN

flip it and the bells land on everything that isn't the key. carve the out-of-key mud without touching a single note you meant to play.

03 · MIDI FOLLOW

CHORD FOLLOW

hold a chord on a MIDI track and the whole grid retunes to it, gliding. your EQ follows the song now.

04 · Q → 200

PLAYABLE RESONATOR

crank Q until boosted notes ring like strings. automate SHIFT in semitones and play the comb like an instrument. DECAY says how long it sustains.

plus TAPER · DYNAMICS · TILT · GLIDE · LIMITER · draggable dots · 14 presets — go play the demo →

under the hood.

an EQ where the filters already know what key you're in.

🎹

one fader, the whole key

up to 64 narrow bells land on the notes of the key and scale you pick. GAIN (±24 dB) moves them all — boost leans the mix into the key, cut carves the key out.

🔄

INVERSE

same fader, opposite target: the space between the notes moves instead of the notes. everything that isn't the key, in one gesture.

🎼

MIDI FOLLOW

hold notes or a chord on a MIDI track and the comb retunes to them, live. the grid follows the song instead of a setting.

📐

matched filters

vicanek matched peaking filters keep their bell shape near nyquist without oversampling. narrow stays narrow, even at the top.

🔀

click-free key changes

dual filter banks with an equal-power crossfade, so switching key or scale never clicks. GLIDE sets how long the morph takes.

🟢

draggable dots

every filter is a dot. drag to offset one note, alt-drag for its width, double-click to reset, box-select on empty space to move a group together.

the knobs

every control, in plain words.

the tooltips inside the plugin say the same thing. hover over anything.

the comb

where the dots go

placement: which notes get filters, and how the grid moves as a whole.

GAIN±24 dB on every band at once — the hero fader
SHIFTslides all dots in semitones. automatable — play the comb
TAPERthins the high end toward chord tones the higher you go
GLIDEhow long grid changes take to morph, 30–200 ms

✓ 14 factory presets cover the obvious starting points

the ring

how the dots behave

behaviour: width, sustain, and when the bands are allowed to move.

Q40 at noon, up to 200 — boosted notes ring like a playable resonator
DECAYcaps how long rings sustain after the input stops. MAX = natural
DYNAMICSbands move only while their note is actually playing
TILTweights the master gain toward the lows or the highs

✓ SOLO hears only what the plugin adds; SOLO REMOVED hears only what it takes away

formats

same engine, both formats.

🎛️
audio unit
.component for logic pro, garageband & any AU host.
🔌
vst3
.vst3 for ableton live, fl studio, cubase, reaper.
🍏
macos universal
apple silicon + intel, one notarized installer. uninstaller included.
🪟
mac now. windows: soon. a windows VST3 build is being worked on — there's no date yet, so today the honest line is mac only.

pricing

$49$29.

one-time · no account · no dongle
$49$29
  • AU + VST3 — macos universal, apple silicon + intel
  • 14 factory presets
  • MIDI FOLLOW, with routing steps for five DAWs inside the plugin
  • signed + notarized installer · uninstaller included
  • checkout via lemon squeezy
ok fine, take my $29

every build ships after 13 automated tests, apple's auval, and pluginval at its strictest level. it works before you pay for it.

faq.

does it work in my DAW?+
AU for logic pro and garageband, VST3 for ableton live, fl studio, cubase, reaper and anything else that scans VST3. it's built and tested first-class in ableton live and logic pro. mac only for now.
what are the dots?+
each dot is one filter sitting on one note. drag it up or down to offset just that note, hold alt and drag for just that note's width, double-click to reset it. drag a box on empty space to select several — then they move, widen and reset as a group.
how do i route MIDI into it?+
turn on MIDI FOLLOW, hold notes or a chord on a MIDI track pointed at KEYCOMB, and the comb retunes to what you're holding. the routing differs per DAW — click the ? next to the presets menu inside the plugin and it walks you through the exact steps for ableton live, logic pro, fl studio, cubase and reaper.
can i play it live?+
yes. push Q toward 200 and boosted notes ring like a playable resonator — hold chords with MIDI FOLLOW or automate SHIFT and the comb becomes an instrument. DECAY keeps the ring-out from swallowing the mix, and DYNAMICS makes bands move only while their note is actually sounding.
is it signed?+
yes — signed and notarized with an apple developer ID, so the installer opens clean with no security warning. an uninstaller is included, and it lists every file it deletes.
windows?+
soon is the honest answer. a windows VST3 build is being worked on and there's no date to promise yet — today KEYCOMB is mac only, apple silicon and intel.
refunds and updates?+
updates within 1.x are free — your lemon squeezy receipt always downloads the latest build. if KEYCOMB won't run on your system, email contact@boomerhotel.com and we'll fix it or refund it.

one fader.
the whole key.

lean into the key $29 also: NULLIFY specs