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An interactive reference for guitar chord shapes, voicings and the theory behind them.

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  3. B
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  5. add9

B added 9th (Badd9)

BRoot
D♯Maj 3
F♯Perf 5
C♯9

Modern and open. Major triad with added 9th, no 7th. Popular in pop, rock, and ambient music.

Notes
BD♯F♯C♯
Formula
1 · 3 · 5 · 9
Type
Added-tone chord
03

How to play it

EADGBe213412345

Badd9

B added 9th, 1fr

Bass
B, the root
Root
B
Strings
A D B e · 1st fret
  • BRoot
  • D♯M3
  • F♯P5
  • C♯9

Up the neck

6 voicings, same four notes

Why an added 9th chord sounds the way it does

B+4 fretsD♯+3 fretsF♯+7 fretsC♯

Stacked from 3 intervals.

04

Where to go next

More B chords

Same root, other colours

Bmaj7B7B6Bsus2Bsus4Bmaj9B6/9

Chords in the key of B

What Badd9 usually sits next to

I · Bii · C♯miii · D♯mIV · EV · F♯vi · G♯mvii° · A♯°

Close relatives

Relatives of B major

  • G♯mRelative minor of B major
  • BmParallel minor, lower the 3rd

Other add9 chords

Same quality, every root

Cadd9C♯add9Dadd9E♭add9Eadd9Fadd9F♯add9Gadd9A♭add9Aadd9B♭add9Badd9
01

Root

B
02

Quality

add9

A triad plus one colour note, no 7th. Softer than a 7th.

Alterations need a 7th chord. Try B7 →

Why an added 9th chord sounds the way it does

B+4 fretsD♯+3 fretsF♯+7 fretsC♯

Stacked from 3 intervals.

03

How to play it

EADGBe213412345

Badd9

B added 9th, 1fr

Bass
B, the root
Root
B
Strings
A D B e · 1st fret
  • BRoot
  • D♯M3
  • F♯P5
  • C♯9

Up the neck

6 voicings, same four notes
04

Where to go next

More B chords

Same root, other colours

Bmaj7B7B6Bsus2Bsus4Bmaj9B6/9

Chords in the key of B

What Badd9 usually sits next to

I · Bii · C♯miii · D♯mIV · EV · F♯vi · G♯mvii° · A♯°

Close relatives

Relatives of B major

  • G♯mRelative minor of B major
  • BmParallel minor, lower the 3rd

Other add9 chords

Same quality, every root

Cadd9C♯add9Dadd9E♭add9Eadd9Fadd9F♯add9Gadd9A♭add9Aadd9B♭add9Badd9
B added 9th