Identify a chord

• Pick your instrument: guitar, ukulele, mandolin, banjo, bass or piano.
• Click the frets, or the keys, to place your fingers.
• Matching chords appear as you go, closest first.
• Click a result to hear it, and check by ear what the screen claims.

One set of notes often goes by several names, depending on which one you treat as the root. C E G A is C6 if you start from C, and Am7 if you start from A: same four sounds, both names correct.

The song decides, not the shape. The ranking puts the most common reading first, but the others stay on screen: they are not mistakes.

It only searches the library shapes for the chosen instrument. An unusual position, musically sound, may return nothing: that does not mean it has no name.

It ignores inversions: a shape does not say which note is in the bass, while a slash chord like D/F# depends entirely on it.