Chord · Diminished 7 Key of B

Bdim7 Chord on guitar · voicings, notes & diagram

The Bdim7 chord contains the notes B, D, F, G♯. Symmetric — every interval is a minor 3rd. Maximum tension, slippery in resolution.

Voicings

How to play Bdim7.

Bdim7 7fr × × × 1 2 3 E A D G B E

Symmetric diminished

Every chord tone on the neck

EADGBE 35791215 Root Scale note

Notes & intervals.

# Degree Note
1 1 B root
2 b3 D
3 b5 F
4 bb7 G♯

Sound & use

Symmetric — every interval is a minor 3rd. Maximum tension, slippery in resolution.

Passing chord, common-tone diminished (e.g. C → C#°7 → Dm); silent-film villain music.

Common in: jazz, classical, ragtime, film

Also written as: °7

Try it interactively

Chord encyclopedia →

Same key

Other chords in the key of B.

B

Major

Bm

Minor

Bdim

Diminished

Baug

Augmented

Bsus2

Suspended 2nd

Bsus4

Suspended 4th

B7

Dominant 7

Bmaj7

Major 7

Bm7

Minor 7

Bm7b5

Minor 7♭5

Bm(maj7)

Minor-Major 7

B6

Major 6

Bm6

Minor 6

Badd9

Add 9

Bm(add9)

Minor Add 9

B9

Dominant 9

Bmaj9

Major 9

Bm9

Minor 9

All keys

Diminished 7 chord in every key.

Cdim7

C♯dim7

Ddim7

D♯dim7

Edim7

Fdim7

F♯dim7

Gdim7

G♯dim7

Adim7

A♯dim7

FAQ

About the Bdim7 chord
on guitar.

What notes are in the Bdim7 chord?

The Bdim7 chord contains the notes B, D, F, G♯ — that's a 1, b3, b5, bb7 from the root.

How do I play Bdim7 on guitar?

The most common voicings for Bdim7 are shown above as fretboard diagrams. Start with the symmetric diminished — finger position numbers are inside the dots. Mute any string marked X; play open strings shown with O.

Where is Bdim7 used in music?

Symmetric — every interval is a minor 3rd. Maximum tension, slippery in resolution. Passing chord, common-tone diminished (e.g. C → C#°7 → Dm); silent-film villain music.

What's a movable shape for Bdim7?

Both E-shape (root on the 6th string) and A-shape (root on the 5th string) barre versions are common. Once you can play those two shapes, you can play Diminished 7 in any key just by sliding up or down the neck.

Can I print the Bdim7 chord diagram?

Yes. Use your browser's print function (Cmd/Ctrl + P) — the SVG diagrams print crisply at any size. For a custom voicing or a printable handout with multiple chords, use the chord chart generator.