Key and BPM detector

Detect song key, BPM, time signature, and chords

Use audio analysis as a starting point for a complete guitar chord chart, not just isolated song metadata.

Metadata that supports the chart

Knowing the key and BPM is useful, but musicians usually need the full chart. ChordMate estimates key, tempo, time signature, and chord movement together so the metadata supports an editable rehearsal sheet.

Useful for practice and teaching

Teachers, guitar players, and songwriters often need a quick read on a track before arranging it. ChordMate gives a practical overview and then lets you correct the details directly in the same workspace.

Export the result after review

Once the key, BPM, and chords look right, the chart can be transposed, paired with capo information, and exported as plain text or ChordPro. The goal is a usable working chart rather than a one-line detector result.

FAQ

Does ChordMate detect time signature?

Yes. It estimates time signature along with key, BPM, and chords, then displays the result in the editor.

Can I manually override the detected key?

Yes. You can change the target key and regenerate matching transposed chords for the chart.

Ready to make a chord chart?

Open ChordMate, upload audio or paste a draft, then review, transpose, and export the chart in one workspace.

Detect key, BPM, and chords