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

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  1. Chords
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  3. B
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  5. 13

B 13th (B13)

BRoot
D♯Maj 3
Amin 7
C♯9
G♯13

Maximum extension. Usually played as subset (omit 11th, sometimes 5th). Big band and jazz standard.

Notes
BD♯AC♯G♯
Formula
1 · 3 · ♭7 · 9 · 13
Type
Extended chord
03

How to play it

EADGBe213412345

B13

B 13th, Open

Bass
B, the root
Root
B
Strings
A D G B e · open
  • BRoot
  • D♯M3
  • Am7
  • C♯9
  • G♯13

Up the neck

6 voicings, same five notes

Why a 13th chord sounds the way it does

B+4 fretsD♯+6 fretsA+4 fretsC♯+7 fretsG♯

Stacked from 4 intervals.

04

Where to go next

More B chords

Same root, other colours

Bmaj7B7Badd9B6Bsus2Bsus4Bmaj9B6/9

Chords in the key of B

What B13 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 13 chords

Same quality, every root

C13C♯13D13E♭13E13F13F♯13G13A♭13A13B♭13B13
01

Root

B
02

Quality

13

5+ notes: stack the 9th, 11th or 13th on a 7th chord.

Why a 13th chord sounds the way it does

B+4 fretsD♯+6 fretsA+4 fretsC♯+7 fretsG♯

Stacked from 4 intervals.

03

How to play it

EADGBe213412345

B13

B 13th, Open

Bass
B, the root
Root
B
Strings
A D G B e · open
  • BRoot
  • D♯M3
  • Am7
  • C♯9
  • G♯13

Up the neck

6 voicings, same five notes
04

Where to go next

More B chords

Same root, other colours

Bmaj7B7Badd9B6Bsus2Bsus4Bmaj9B6/9

Chords in the key of B

What B13 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 13 chords

Same quality, every root

C13C♯13D13E♭13E13F13F♯13G13A♭13A13B♭13B13
B 13th