Abdim chord
Ab diminished
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Play Abdim on ukulele at frets 1-2-4-2 in gCEA tuning.
The Abdim chord has the formula 1, b3, b5 with notes Ab, B, D
The diminished chord is a variation of the minor chord with a flat 5th note. It is less common in popular music due to its high tension, but can sometimes be used as a bridge between two chords to emphasize the release of tension.