Perilune Detector
Key, tempo and tuning detector VST3 plugin for Windows
Press play. It tells you the key, the tempo and the tuning.
One-time purchase with lifetime updates. Up to 3 computers. Free 14-day trial.
Also in the Perilune Bundle: nine plugins for $119. See the bundle
Live or fileAnalyse the track as it plays, or load or drop an audio file and analyse that instead.InputTrim and Gate set what the detector hears. Source focuses on the full mix, the melody or the bass.ListenLit while detecting. Turn it off to hold the result; Reset starts again.Key and scaleThe detected key, how sure it is, the key signature, and its relative major and minor.Circle of fifthsEvery key lit by how well it fits, with the detected key glowing.Best matchesThe four most likely keys, each with its score.Copy and MIDICopy the result as text, or drag a MIDI clip of the scale and its chords onto a track.Pitch classesOne octave showing what is sounding now, the long-term profile, the scale notes and the degrees.TempoBPM to a tenth, half and double, and a beat lamp.TuningThe A4 reference in Hz and its offset from 440 Hz in cents.AnalysisHow long it remembers, the tempo range to search, and sharps or flats.
Inside Perilune Detector
Select a numbered marker on the screenshot, or read through the notes below.
Live or file
Analyse the track as it plays, or load or drop an audio file and analyse that instead.
Input
Trim and Gate set what the detector hears. Source focuses on the full mix, the melody or the bass.
Listen
Lit while detecting. Turn it off to hold the result; Reset starts again.
Key and scale
The detected key, how sure it is, the key signature, and its relative major and minor.
Circle of fifths
Every key lit by how well it fits, with the detected key glowing.
Best matches
The four most likely keys, each with its score.
Copy and MIDI
Copy the result as text, or drag a MIDI clip of the scale and its chords onto a track.
Pitch classes
One octave showing what is sounding now, the long-term profile, the scale notes and the degrees.
Tempo
BPM to a tenth, half and double, and a beat lamp.
Tuning
The A4 reference in Hz and its offset from 440 Hz in cents.
Analysis
How long it remembers, the tempo range to search, and sharps or flats.
Files, flats and the key at a glance
Key and tempo detection features: key, scale, BPM and A4 tuning
Put it on any track or the mix bus and press play: it shows the key and scale with how sure it is, the tempo to a tenth of a BPM, and the A4 the music is tuned to. Drop an audio file on it to analyse it faster than real time. Copy the result, or drag out a MIDI clip with the scale and its chords. The audio passes through untouched, with no added latency.
Key and scale
All 24 major and minor keys, with a confidence, the four best matches, the relative key and the key signature.
Circle of fifths
Majors outside, minors inside, each lit by how well it fits. The detected key glows and its relative key is outlined.
Keyboard
See what is sounding now, the long-term profile, the scale notes, the tonic and the scale degrees.
Tempo
BPM to a tenth, with half and double, your session's tempo for comparison, a beat lamp and a confidence.
Tuning
The A4 the music is tuned to, in Hz to a tenth and in cents from 440 Hz, with a needle.
Drop a file
Drop WAV, AIFF, FLAC, Ogg or MP3 on the panel and it is analysed faster than real time. Switch between the track and the file.
Use the result
Copy the key, tempo and tuning as text, or drag out a MIDI clip with the scale and its seven chords at the detected tempo.
Never in the way
The audio passes through untouched with no latency, and the last result is saved with your session.
Send the key (coming soon)
SEND will pass the key, as detected or as its relative major or minor, to the upcoming Perilune Pitch Corrector on any track.
System requirements
Perilune Detector runs in any Windows DAW that loads VST3 plugins. Try it free for 14 days before you buy.
| Format | VST3 |
|---|---|
| System | Windows 10 or later, 64-bit |
| Hosts | Any Windows DAW that loads VST3 plugins |
| License | One license, up to 3 of your computers |
| Version | 1.0.0 |
Try it free for 14 days.
The trial is the full plugin. After 14 days it stops processing audio until you enter a license key. No account or card needed.
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