Adim7 Ukulele Chord
A brooding diminished seventh built from A, C, D# and F#. Its symmetrical stack of minor thirds gives it a suspended, mysterious quality favored for jazz turnarounds and leading-tone moments in classical writing.
Also known as
- A°7
- A °7
- A dim7
- A diminished 7th
- A diminished seventh
How to Play This Chord
Position your fingers on the fretboard as shown in the diagram. The vertical lines represent the four strings, from the top G string (left) to the A string (right), and the horizontal lines are the frets. Numbers inside the dots indicate which finger to use: 1 (index), 2 (middle), 3 (ring), 4 (pinky). An X means don't play that string; an O means play it open. A bar spanning multiple strings means one finger presses across all of them at once — this is known as a barre chord.
Tips & Tricks
Set your index on the G string at fret 2, then middle on the E string and ring on the C string at fret 3, with pinky on the A string at fret 3. Arch your knuckles so the four fingers don't mute their neighbors; since the chord repeats by minor thirds, this same shape also gives you C, D# and F# diminished seventh further up.