How to use EarChords

A short path from a recording to a practice session.

1. Choose a recording

Use “Upload a file” for an MP3, WAV, M4A, FLAC or OGG recording. The tool also accepts supported AAC and WebM files. Files must be no larger than 250 MB. You can try the demo first without selecting a file.

“Capture playing audio” lets you choose a browser tab or microphone. Tab capture depends on browser support; select the tab’s audio sharing option when prompted. For microphone recordings, keep speakers close and reduce background noise. Stop the recording when you have captured the passage you need.

2. Let the analysis finish

The first analysis downloads the pitch-detection model. Processing speed depends on your device and recording length. The progress screen shows the current stage; you can cancel and try another recording. Your audio is analyzed locally.

3. Check and practice

Play the track and follow the highlighted chords. Click a bar to jump to it. Choose guitar, piano or ukulele diagrams, transpose the chord labels, or set a capo to view the shapes you would play. Transposing the displayed chords does not change the pitch of the original recording.

Use the speed slider to slow playback. Shift-click two bars to create an A–B loop and repeat a difficult section. “Play chords” adds synthesized chords so you can check whether the estimate fits. “Copy” exports the displayed chord sheet as text.

If a result sounds wrong

Try a clearer or shorter recording, listen to the bass notes and compare the diagrams by ear. Automatic estimates can confuse inversions, extended chords or unusual tuning. Do not treat the result as a verified score.

Use audio you are entitled to process

EarChords does not provide song downloads. Use your own recordings or audio you have permission to use; third-party listening links have their own terms.