EXPLORE LABRuns in your browser

Choose notes on the keyboard. Click again to remove a note.

No notes selected

Searches only the published library. Missing matches do not mean a chord is impossible; octave order, bass inversion and omitted notes are not inferred.

MAKE THE TOOL WORK FOR YOU

How to use chord finder

Chord Finder helps you identify chords by choosing the notes you want on an on-screen piano. Each key represents one of the twelve pitch classes, so you can build a set of notes regardless of octave and see which chords in the published library match that exact collection of pitches.

  1. Click or tap the keys on the piano to toggle the twelve pitch classes on or off until your selection matches the notes you want to examine.
  2. Press the play control to hear the notes you have selected, so you can confirm the sound matches what you intended.
  3. Press Find chords and review the exact pitch-class matches in the published library. Choosing notes alone does not run the search.
  4. Open any matching reference to read its full entry, or use the clear control to empty the selection and start again.

Try this example

Select the keys C, E and G, then review the matches. The tool looks for a reference whose pitch classes are exactly C, E and G, so a C major triad should appear among the results, which you can open to read its details.

Keep in mind

Chord Finder only searches the published library and compares pitch classes exactly. A missing match does not mean a chord cannot exist, since octave order, bass inversion and omitted notes are not taken into account.

AI-assisted description · edited against the implemented controls.

Another way to practice.

All ten tools ↗