B♭dim7
B♭ diminished seventh
Notes
B♭ – D♭ – F♭ – A𝄫
Formula
1 – ♭3 – ♭5 – ♭♭7
A diminished triad with a diminished seventh — three stacked minor thirds.
To build B♭dim7, start on B♭ and stack the intervals ♭3, ♭5, ♭♭7 above it.
On piano
On guitar
Shapes generated and checked against the chord engine, standard tuning.
x–1–2–0–2–0Open in Explorer
OOpen
Fret 2
OOpen
Fret 2
Fret 1
✕Muted
123456789101112
6–4–5–0–5–0Open in Explorer
OOpen
Fret 5
OOpen
Fret 5
Fret 4
Fret 6
123456789101112
6–7–5–6–x–xOpen in Explorer
✕Muted
✕Muted
Fret 6
Fret 5
Fret 7
Fret 6
123456789101112