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Guitar chord
A°7 Chord
A°7 is a diminished 7th chord rooted on A. Four notes stacked in minor thirds, perfectly symmetrical. Maximum tension, and it can resolve in four directions at once.
The notes
Every A°7 chord anywhere on the neck is some arrangement of these 4 notes.
A1
C♭3
E♭♭5
G♭𝄫7
How to play it
2 shapes, low on the neck to high. Tap any diagram to hear it. Green marks the root.