B minor seventh (Bm7) chord on mandolin

Looking for the Bm7 chord on mandolin? It is a minor seventh chord (a minor triad plus a minor seventh), made of four notes: B – D – F♯ – A.

Dots show:

Basic shapeeasy

Position 4easy

Position 7easy

Position 9easy

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What the Bm7 chord sounds like

A minor seventh chord is softer than a plain minor chord – the minor seventh fills out the sound. In jazz it is the ii of the ii–V–I, in pop and soul a common colour chord.

Notes of the Bm7 chord

Degree	Note	Interval from the root
1	B	root
3	D	minor third (3 semitones)
5	F♯	perfect fifth (7 semitones) – often omitted on fretted instruments
7	A	minor seventh (10 semitones)

How to play it – with fingering

Basic shape

String 1 (E): fret 2, ring finger (F♯5)
String 2 (A): fret 2, middle finger (B4)
String 3 (D): open (D4)
String 4 (G): fret 2, index finger (A3)

Position 4

String 1 (E): fret 5, middle finger (A5)
String 2 (A): open (A4)
String 3 (D): open (D4)
String 4 (G): fret 4, index finger (B3)

Position 7

String 1 (E): fret 7, ring finger (B5)
String 2 (A): open (A4)
String 3 (D): fret 7, middle finger (A4)
String 4 (G): fret 7, index finger (D4)

Tuning: G D A E, like a violin; every note is a pair of strings that you fret together. In the diagram, × means the string is not played, and a circle means an open string.

Which keys is it in?

The Bm7 chord is built from the notes of these keys (for minor keys, both the natural and the harmonic minor are considered):

B minor: i7 (tonic)
E minor: v7 (dominant)
F♯ minor: iv7 (subdominant)
G major: iii7
D major: vi7
A major: ii7

Similar chords and substitutes

If Bm7 is too hard, or you want a different colour in the same spot, these chords are worth a try.

Substitutes (by function)

Dmaj7 – relative major seventh: three shared notes
E7 – in a ii–V, this is the dominant that follows

Same notes

D6 – the same notes with a different root

Simpler versions

Bm – all 3 of its notes are in this chord

Richer versions

Bm9 – the same chord plus 1 colour note

Frequently asked questions

What notes are in the Bm7 chord?

B, D, F♯, A. The root is B; the intervals of the other notes from the root: minor third, perfect fifth, minor seventh.

What is the easiest way to play Bm7 on mandolin?

The easiest shape above is “Basic shape”, rated easy. We show 4 shapes, from open and easy versions to movable barre shapes higher up the neck.

How do I read the chord diagram?

Strings run from the lowest (left) to the highest (right) – tick “Left-handed” to mirror it. Rows are frets; a number at the side shows the starting fret. Dots are fingers (1 index, 2 middle, 3 ring, 4 little), a long bar is a barre, × means don't play that string and ○ means play it open.

Why is a note missing from some Bm7 shapes?

On a fretted instrument you can't always play every note of a 4-note chord. The fifth (F♯) may be dropped – the chord keeps its character without it.

Why do some songbooks write H instead of B?

In German and Central European notation, H is the note B, and B is the note B♭. So a “B” chord in a German or Hungarian songbook is B♭ in English notation, and an “H” chord is B. Always check which notation your chord chart uses.