Learn › B Flat Diminished Chord on Guitar (Bbdim)
New Released in April 2026
B Flat Diminished Chord on Guitar (Bbdim)
To play Bbdim on guitar, press the strings shown below; some strings ring open. Then strum from the 5th string down: the notes Bb, Db, Fb ring together. Here is the shape, finger by finger, plus the chords you will play next to it.
No account, no download. The demo has limited content. Advanced features are in ChordRunner Premium.
- MIDI keyboard
- Digital or acoustic piano
- Guitar
- Computer, phone or tablet
How to play Bbdim on guitar
Fingers and frets
- Index: 5th string (A), fret 1
- Middle: 4th string (D), fret 2
- Little: 3rd string (G), fret 3
- Ring: 2nd string (B), fret 2
Strings to play
x1232x: × = do not play, 0 = open string.
Which note each string plays
| 5th string (A) | fret 1: Bb |
|---|---|
| 4th string (D) | fret 2: Fb |
| 3rd string (G) | fret 3: Bb |
| 2nd string (B) | fret 2: Db |
Slide this shape along the neck: fret 2 = Bdim, fret 3 = Cdim, fret 4 = C#dim, fret 5 = Ddim.
Learning Bbdim step by step
- Place the fingers one at a time, then strum and listen to each string.
- Take the hand off and put the whole shape back at once, ten times in a row.
- Change from Bbdim to Bb and back for a minute; then add Eb.
Bbdim higher up the neck
Players switch to this position to keep the hand in one area of the neck.
Where Bbdim is used
Bbdim wants to move up one fret: play Bbdim, then B or Bm, and it resolves.
Practise Bbdim with the microphone
Bbdim turns up between other chords in ChordRunner; strum it on time and the runner jumps. MIDI keyboard or microphone, both work. MIDI keyboard or microphone, both work.
Play the demoCommon questions
Is Bbdim easy on guitar?
Yes, it is one of the open chords beginners learn first. Start slowly, check that every string rings, then practise switching to Bb.
Which fingers do I use for Bbdim?
Index finger: 5th string (A), fret 1, middle finger: 4th string (D), fret 2, little finger: 3rd string (G), fret 3, ring finger: 2nd string (B), fret 2.
Can I practise Bbdim with a microphone or MIDI keyboard?
Both work in ChordRunner. The microphone hears an acoustic or electric guitar; a USB MIDI keyboard is detected automatically. Either way Bb, Db, Fb must sound together.
Your instrument is the controller.
ChordRunner is a browser game that teaches piano and guitar chords: a chord appears on screen, you play it on a real instrument, and your runner jumps. MIDI keyboard or microphone, both work.
Try the demoKeep learning
Easy Guitar Chords for Beginners
Easy guitar chords for beginners: Em, Am, C, G, D, E, A and Dm with diagrams, the order to learn them and how …
Guitar Chord Chart: 21 Essential Chords
Guitar chord chart with diagrams: the 7 major, 7 minor and 7 seventh chords guitarists use most, how to read a…
Guitar Chord Game: Practise Chords on Your Guitar
A guitar chord game in your browser: a chord appears, you strum it, the microphone hears it. Practise chord ch…
B Flat Diminished Chord on Piano (Bbdim)
B flat diminished chord on piano (Bbdim): notes Bb Db Fb, keyboard, inversions, fingering and where it resolve…
Chord Training That Feels Like a Game
Interactive chord training in your browser. Play major, minor, 7th and extended chords on a MIDI keyboard or a…
Master All 12 Major Chords on Piano
Every major chord on piano with notes and fingering, plus an interactive game that drills all 12 until they ar…