A♭ diminished

Diminished chord (Root, minor third and diminished fifth).

Low E to high E: fret 4, fret 2, open, fret 1, open, fret 4. Filled circles mark the root. Shading marks frets 1 to 5, the chord search window.123456789101112131415161718192021222324EA♭C♭C♭GA♭E𝄫E𝄫AC♭EA♭

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