You can choose a root note and a chord type from the controls above. The keyboard will immediately highlight the notes that belong to that chord. You can click any key to hear its sound. Switch to “Free play / identify chords” mode to click several notes and see if they form a recognizable chord. The tool will display the chord name or let you know if no common chord was detected.

A chord is a group of two or more notes played together. The most basic chord is the triad, which consists of a root, a third, and a fifth. By changing the interval between these notes we get different chord qualities, such as major (root, major third, perfect fifth) or minor (root, minor third, perfect fifth).

The tool includes major, minor, diminished, augmented, major 7th, minor 7th, dominant 7th, suspended 2, and suspended 4 chords. In free play mode it attempts to identify these and their inversions from the notes you select on the keyboard.

This tool matches the selected notes against a library of common chord types. If the combination is very unusual, incomplete, or contains notes that don’t align with any standard chord shape, it may return “No chord identified”. Try adding or removing a note, or check if you accidentally selected extra keys.

Yes. In free play mode, if you click notes that form, for example, E, G, C (a C major chord in first inversion), the tool will still recognize it as C major. The keyboard highlights and the chord name help you see how different note orders create the same harmony.