Bdim7 chord at the 1st fret (x23131)
- Fingering
- x23131
- Fingers
- – 2 3 1 4 1
- Difficulty
- Medium
- Position
- 1st fret
B diminished 7th · B°7
The Bdim7 guitar chord is played x23131, starting at the 1st fret. Its notes are B, D, F and Ab.
The Bdim7 chord is made of B · D · F · A♭. Its formula is 1–♭3–♭5–♭♭7.
| Note | Degree | Interval from B |
|---|---|---|
| B | 1 | root |
| D | ♭3 | minor third |
| F | ♭5 | diminished fifth |
| A♭ | ♭♭7 | diminished seventh |
That is the 1st fret shape, x23131. It is rated medium: 4 fingers, 5 strings.
Low E string is not part of this Bdim7 shape. Start your strum on the A string, or rest your thumb on the unused string to keep it quiet.
The easiest Bdim7 shape on this page is xx3434 (3rd fret). It uses 4 fingers and 4 strings, with no barre.
Bdim7 has 1 barre shape here: 789797 (barre at the 7th fret).
A barre shape has no open strings, so it moves. Slide it up one fret and you are playing Cdim7.
All diminished 7th guitar chords
Play x23131, reading from the low E string to the high E string. An x means the string is not played and a 0 means it rings open. The fingers used are - 2 3 1 4 1.
The B diminished 7th chord has 4 notes: B, D, F and Ab. Its formula is 1–♭3–♭5–♭♭7, counted from the B major scale.
Printable Bdim7 chord PDF (one letter page, black on white) · Bdim7 chord PNG (1200 px)
