MIDI GenieFree tool · MIDI Genie
Chord Finder
Play a song. Watch its chords.
Find the chords of any song or beat. Drop in a file, or record 30 seconds of a song playing nearby, and watch each chord light up on a piano as it plays, with the key and the chords that fit it. Free, no sign-up.
Listening… keep the music playing.
A dashed chord is a close call. Tap "or …" under the chord to hear the other choice and keep the one that fits.
No clear chords in this song: it may be mostly drums. The chords of the key below always fit.
Make a loop that fits.
Make a loop that fitsMore options
How it works
- Drop in a song or record itAny MP3, WAV, M4A or FLAC: a finished song, a beat you're working on, or a sample. Or record up to 30 seconds of a song playing nearby with your mic.
- It listens in your browserIt finds the beat, then reads the notes on every beat and matches them to the chords, leaning towards the chords of the song's key.
- Watch, play along, use itPress play and each chord lights up on the piano as it comes. Tap a chord to jump there, play the chords over your song, then make a loop that fits, in MIDI Genie.
Questions
Is my song uploaded anywhere?
No. The chord finder runs entirely in your browser. Your song or recording is read and measured on your own device and is never uploaded, sent or stored anywhere.
How accurate is it?
It reads major and minor chords, beat by beat, and is at its best on songs with clear harmony: keys, guitars, pads. On a busy mix with loud vocals it will get some chords wrong, so use your ears: turn on "Play the chords" to hear them over your song. Close calls are dashed, and every chord has a second choice under it ("or …") to hear and swap in.
What are the numbers next to the chords?
Roman numerals: where each chord sits in the key. In C major, C is I, F is IV, G is V and A minor is vi. They're how musicians talk about progressions, and they work in any key: a I–V–vi–IV song uses the same shape whatever key it's in.
What are the chords in the key?
The chords built on each note of the song's key. They always fit, so they're a safe place to start writing your own part. Tap one to hear it and see it on the piano. If the key looks wrong, pick another and they follow.
Can I find the chords of a song playing near me?
Yes. Press "Record 30 seconds", allow the microphone, and hold your phone or laptop close to the speaker. A file gives the cleanest result; in a noisy room, check the chords by ear.
Is it free?
Yes. No sign-up, no limit on how many songs you check. Need just the key and tempo? Try the Key & BPM finder.
Found the chords? Make something that fits.
20 free credits. No card. Loops and MIDI in your song's key and tempo.
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