B flat diminished seventh (Bb°7) chord on guitar
- Notes
- B♭D♭F♭A𝄫
- Formula
- 1♭3♭5𝄫7
How to play Bb°7 on guitar
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Shape 1 · 1st position
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Shape 2 · fret 6 · barre
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Shape 3 · fret 8
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Shape 4 · 1st position
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Shape 5 · fret 5
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Shape 6 · fret 6 · barre
Numbers are fingers: 1 index, 2 middle, 3 ring, 4 pinky. x = do not play the string, o = open string. The coloured dot is the root (B flat). The same shapes work on acoustic, classical and electric guitar.
Bb°7 inversions on guitar
The same Bb°7 with another chord note in the bass (the lowest note that sounds). The notes stay the same, but the colour changes, and the bass line can move by step from one chord to the next. In a chord symbol, the bass comes after the slash.
3rd (D♭) in the bass1st inversion · Bb°7/Db
3rd (D♭) in the bass1st inversion · Bb°7/Db
5th (F♭) in the bass2nd inversion · Bb°7/Fb
5th (F♭) in the bass2nd inversion · Bb°7/Fb
7th (A𝄫) in the bass3rd inversion · Bb°7/Abb
7th (A𝄫) in the bass3rd inversion · Bb°7/Abb
Jazz voicings
About the diminished seventh chord
The diminished seventh splits the octave into four equal parts: the same shape repeats every 3 frets and the chord has four possible names. A sound of drama and suspense; the classic passing chord of choro, samba, tango and silent-film scores.
Notes and intervals of Bb°7
Bb°7 (B flat diminished seventh) is built from 4 notes. Each one fills a degree of the chord:
- B♭ · 1 · root
- D♭ · ♭3 · minor third
- F♭ · ♭5 · diminished fifth
- A𝄫 · 𝄫7 · diminished seventh
Other B flat chords
- Bb
- Bbm
- Bb7
- Bb7M
- Bbm7
- Bbm7(b5)
- Bb°
- Bb°7
- Bb+
- Bbsus2
- Bbsus4
- Bb7sus4
- Bb5
- Bbadd9
- Bb6
- Bbm6
- Bb9
- Bbm(add9)
- Bbm9
- Bb7M(9)
- Bbm(7M)
- Bb7M(#5)
- Bb7(b9)
- Bb6(9)
- Bbm6(9)
- Bb11
- Bbm11
- Bb13
- Bbm13
- Bb7(#9)
- Bb7(#11)
- Bb7(b13)
- Bb7(#5)
- Bb7M(#11)
- Bb9sus4
Diminished seventh: other roots
Arpeggio
Frequently asked questions
How do you play the Bb°7 chord on guitar?
Bb°7 (B flat diminished seventh) has 6 fingerings on this page, from easiest to hardest. Each diagram shows the fingers, the open strings (o) and the strings you do not play (x), and you can hear every shape.
What notes are in Bb°7?
The notes of Bb°7 are B♭, D♭, F♭, A𝄫. The formula is 1 · ♭3 · ♭5 · 𝄫7: root, minor third, diminished fifth, diminished seventh.
What does Bb°7 mean?
Bb°7 is the chord symbol for B flat diminished seventh. The diminished seventh splits the octave into four equal parts: the same shape repeats every 3 frets and the chord has four possible names. A sound of drama and suspense; the classic passing chord of choro, samba, tango and silent-film scores.
Can I play Bb°7 on other instruments?
Yes. Bb°7 also has a page on ukulele, on cavaquinho, with the fingerings for each instrument.