Fdim7
F diminished seventh
Notes
F – A♭ – C♭ – E𝄫
Formula
1 – ♭3 – ♭5 – ♭♭7
A diminished triad with a diminished seventh — three stacked minor thirds.
To build Fdim7, start on F and stack the intervals ♭3, ♭5, ♭♭7 above it.
On piano
On guitar
Shapes generated and checked against the chord engine, standard tuning.
1–2–0–1–0–1Open in Explorer
Fret 1
OOpen
Fret 1
OOpen
Fret 2
Fret 1
123456789101112
x–x–3–4–3–4Open in Explorer
Fret 4
Fret 3
Fret 4
Fret 3
✕Muted
✕Muted
123456789101112
x–8–6–7–0–7Open in Explorer
Fret 7
OOpen
Fret 7
Fret 6
Fret 8
✕Muted
123456789101112