Find the shape of a chord.

Choose a root and quality, or select notes on the keyboard.

Interactive piano keyboardSelected notes: C4 · E4 · G4. Gold marks the root when one is known.C4D4E4F4G4A4B4C5C♯4D♯4F♯4G♯4A♯4
Root noteSelected tone

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Compare another chord

C Minor

C4 · E♭4 · G4

Notes and intervals

DegreeNotesSemitones
1C40
3E44
5G47

Build a chord

Select a root, chord quality, octave and inversion. The result keeps the root name, interval formula and sounding notes together. Play the chord as a block or hear its members in sequence.

  1. Start with C major in root position.
  2. Compare C, E and G with C, E-flat and G.
  3. Change the inversion and listen for the new bass note.

Identify a selected collection

Switch to Identify notes and select the pitches you want to examine. A matching name is a supported interpretation, not proof of a unique harmonic meaning. C, D and G can form Csus2 with C as root or Gsus4 with G as root. Read the candidate before choosing a root.

Keep spelling and scope visible

The explorer covers twelve listed qualities, from major and minor triads to diminished and minor-major seventh chords. A no-match message means the collection is outside those templates. It does not mean the notes are unusable in music.

Sources and methods