# A diminished 7th Guitar Chord

> The A diminished 7th diminished 7th chord extends the diminished triad with a double-flatted seventh G♭, creating a haunting, symmetrical dissonance. Its ambiguous, tension-filled sound is ideal for dramatic resolutions, suspenseful scenes, or mysterious soundscapes in classical and cinematic compositions.

Source: https://guitarwiz.app/chords/a-diminished-7th

## Chord Facts

- Symbol: Adim7
- Notes: A, C, E♭, G♭
- Intervals: 1 (A), ♭3 (C), ♭5 (E♭), ♭♭7 (G♭)
- Mood: dramatic, suspenseful, intense, ominous
- Genres: Classical, Jazz, Cinematic, Experimental
- Playable shapes: 22

## Quick Shapes

- Shape 1: 5 0 4 5 4 5 (https://guitarwiz.app/chords/a-diminished-7th/504545)
- Shape 2: 5 6 7 5 7 5 (https://guitarwiz.app/chords/a-diminished-7th/567575)
- Shape 3: -1 0 13 11 13 11 (https://guitarwiz.app/chords/a-diminished-7th/x0dbdb)
- Shape 4: -1 12 13 11 13 11 (https://guitarwiz.app/chords/a-diminished-7th/xcdbdb)
- Shape 5: -1 0 4 5 4 2 (https://guitarwiz.app/chords/a-diminished-7th/x04542)
- Shape 6: -1 0 10 8 7 8 (https://guitarwiz.app/chords/a-diminished-7th/x0a878)
- Shape 7: -1 0 10 11 13 11 (https://guitarwiz.app/chords/a-diminished-7th/x0abdb)
- Shape 8: -1 0 13 11 13 14 (https://guitarwiz.app/chords/a-diminished-7th/x0dbde)

## Related Articles

- https://guitarwiz.app/articles/how-to-read-guitar-chord-diagrams
- https://guitarwiz.app/articles/chord-construction-guitar
- https://guitarwiz.app/articles/chord-inversions-guitar
- https://guitarwiz.app/articles/diminished-chords-guitar