Adim7 guitar chord
How to play Adim7 on guitar — the notes A, C, E♭, G♭, a shape you can tap to hear, the keys it lives in, and a progression to hear it in context. Free.
The shape
Tap the diagram to hear Adim7 strummed. Adim7 is an open chord — it uses open strings near the nut, so it rings full and is friendly for beginners.
The notes in Adim7
A diminished seventh chord is spelled from its root up: A (R), C (♭3), E♭ (♭5), G♭ (♭♭7). Those are the only notes in Adim7 — play them in any order, in any octave, and it's still Adim7.
What a diminished seventh chord is
In plain terms, a diminished 7th stacks three minor thirds (root, ♭3, ♭5, ♭♭7) — perfectly symmetrical, so it can pivot to almost any key.
How it's used: A slippery passing chord: because every note is a minor third apart, one shape covers four different roots, and it can lead almost anywhere.
The sound: Maximum tension, mysterious, cinematic — the classic 'something's coming' chord. Where you'll hear it: Jazz passing chords, silent-film suspense, neoclassical metal, gypsy jazz.
Other A chords
diminished seventh chords on other roots
Chords and their spellings are shared facts of music theory. Every diagram and sound here is generated by ThunderFret's own engine — no tabs, lyrics or recordings are reproduced.
Open Adim7 in the interactive tool to see every place it sits on the neck, hear it, and find the shape that fits your hand — free.
See Adim7 on the fretboardFrequently asked
What notes are in Adim7?
Adim7 is made of 4 notes: A (the R), C (the ♭3), E♭ (the ♭5), G♭ (the ♭♭7).
How do you play Adim7 on guitar?
Adim7 is an open chord — it uses open strings near the nut, so it rings full and is friendly for beginners.
When would I use Adim7?
Jazz passing chords, silent-film suspense, neoclassical metal, gypsy jazz.