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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. mM7

B minor/major 7th (BmM7)

BRoot
Dmin 3
F♯Perf 5
A♯Maj 7

Dark and dramatic. Minor triad with major 7th. Used in jazz and film scores for tension and sophistication.

Notes
BDF♯A♯
Formula
1 · ♭3 · 5 · 7
Type
Seventh chord
03

How to play it

EADGBe13212345

BmM7

B minor/major 7th, Open

Bass
B, the root
Root
B
Strings
A D G B e · open
  • BRoot
  • Dm3
  • F♯P5
  • A♯M7

Up the neck

6 voicings, same four notes

Why a minor/major 7th chord sounds the way it does

B+3 fretsD+4 fretsF♯+4 fretsA♯

Stacked from 3 intervals.

04

Where to go next

More B chords

Same root, other colours

Bm7Bm9Bm6Bm11

Chords in the key of B minor

What BmM7 usually sits next to

i · Bmii° · C♯°III · Div · Emv · F♯mVI · GVII · A

Close relatives

Relatives of B minor

  • DRelative major of B minor
  • BParallel major, raise the 3rd

Other mM7 chords

Same quality, every root

CmM7C♯mM7DmM7E♭mM7EmM7FmM7F♯mM7GmM7A♭mM7AmM7B♭mM7BmM7
01

Root

B
02

Quality

mM7

4 notes: a triad plus a 7th. Jazzier, wants to move.

Alterations need a 7th chord. Try B7 →

Why a minor/major 7th chord sounds the way it does

B+3 fretsD+4 fretsF♯+4 fretsA♯

Stacked from 3 intervals.

03

How to play it

EADGBe13212345

BmM7

B minor/major 7th, Open

Bass
B, the root
Root
B
Strings
A D G B e · open
  • BRoot
  • Dm3
  • F♯P5
  • A♯M7

Up the neck

6 voicings, same four notes
04

Where to go next

More B chords

Same root, other colours

Bm7Bm9Bm6Bm11

Chords in the key of B minor

What BmM7 usually sits next to

i · Bmii° · C♯°III · Div · Emv · F♯mVI · GVII · A

Close relatives

Relatives of B minor

  • DRelative major of B minor
  • BParallel major, raise the 3rd

Other mM7 chords

Same quality, every root

CmM7C♯mM7DmM7E♭mM7EmM7FmM7F♯mM7GmM7A♭mM7AmM7B♭mM7BmM7
B minor/major 7th