YEKE KEY
Real-time BPM · Key · Chord Detection — Powered by AI
Stop guessing. Stop pausing the track. Stop hunting for the key by ear. YEKE KEY is the musical brain that lives inside your DAW. Drop it on any audio channel and within seconds you have the exact BPM, the real key, the chord progression that's playing — and the MIDI ready to drag straight into your playlist. Built on the same machine-learning models that power professional music-analysis tools, condensed into a 16 MB plugin that loads instantly. No cloud. No subscription. No waiting. Just answers.
NO ACCOUNT REQUIRED · WINDOWS 10/11 · 16 MB
WHAT IT ACTUALLY DOES
Every detail,
engineered.
Instant Real-Time Detection
BPM and key while the music plays. No upload, no rendering. BTrack + libKeyFinder multi-profile (Sha'ath, Krumhansl, Temperley, Albrecht-Shanahan) with beat-level majority voting. The number stays still — it doesn't dance.
Pro-Grade Deep-Learning Analysis
Drop any .wav / .mp3 / .flac into Load File mode and get the most accurate result on the market: TempoCNN, madmom KeyCNN, DeepChroma and a Krumhansl-Kessler ensemble — the same algorithms published at ISMIR, running locally in milliseconds.
Live Chords + Roman-Numeral Degrees
Once the key is locked, the plugin recognises the chord playing right now and tells you in Roman numerals — I, vi, IV, V, ii, iii, vii°. Knowing where you are in the song becomes obvious. Color-coded by scale degree.
Built-In Camelot Wheel
Camelot codes (8B, 12A, 5A…) under every detection so you can instantly tell which keys mix harmonically. Perfect for DJs, sampling producers and mashup artists.
Automatic DAW Tempo Sync
The plugin reads your DAW's tempo. If your project is at 128 and the audio matches, the display snaps to the host's exact value. No flickering. No dancing decimals.
Smart Lock — Detection Settled
When the detector is fully confident, a gold banner suggests you commit. One click and BPM and key freeze in place, refocusing the engine on chord extraction with beat-complete majority voting. Auto-Lock can decide for you.
Live MIDI Out — Key Follower
Switch on the MIDI output and route it to any synth. What the detector hears becomes sustained MIDI chords in real time — an automatic accompaniment synced to the track, ready to stack new textures on top.
Drag MIDI From Audio to Piano Roll
When a stable, confident chord loop is recognised, a gold button appears. Drag the MIDI directly onto your playlist or piano roll — triads plus a bass note one octave below, at the exact BPM and key. What used to take minutes is a one-second drag.
Manual Override When You Need It
Detector got it wrong? Click EDIT, type the BPM, pick the key — done. The UI treats your choice as its own and respects it.
Full State Persistence
Lock, auto-lock, MIDI out, manual override — everything saves with your project. Open it tomorrow and the plugin is exactly where you left it.
UNDER THE HOOD
The engineering.
- ►4 ONNX neural networks (TempoCNN + KeyCNN + DeepChroma) running on CPU. No GPU required.
- ►9 chord templates: maj, min, dim, dom7, min7, maj7, sus2, sus4, power.
- ►HMM smoothing over the 24-state key space (12 major × 12 minor) with circle-of-fifths transition cost.
- ►10-second rolling-median BPM estimator with octave correction, using the DAW tempo as primary reference.
- ►Beat-complete majority voting for chord output — outliers filtered automatically.
- ►WebView2 UI with GPU-accelerated rendering, fluid animations and a premium dark aesthetic.
WHO IT'S FOR
Built for makers.
- ▸Producers — identify the key and chords of any sample in seconds, drag the MIDI and build a beat on top.
- ▸DJs — instant harmonic mixing with Camelot codes. No spreadsheets, no memorising keys.
- ▸Remixers — drag the MIDI of the original chord loop and start with a guaranteed harmonic foundation.
- ▸Vocalists — check whether a track sits in your range before stepping into the booth.
- ▸Music students — watch Roman-numeral degrees light up in real time and learn what every song is doing.
- ▸Composers and beatmakers — reference audio to editable MIDI in your DAW, instantly.
SPECIFICATIONS
The technical sheet.
GET IT NOW
Yours,
for free.
BUILT BY YEKE PLUG