semicord

Gm7 G minor seventh chord

Notes
G Bb D F
Formula
1 b3 5 b7
Semitones
0 3 7 10 above the root
Other symbols
Gmin7, G−7

G to Bb is a minor third (3 semitones), Bb to D is a major third (4 semitones), D to F is a minor third (3 semitones). A minor triad plus a minor seventh (F). With Bb in the bass the same four notes are read as Bb6.

Gm7 on the piano

C4D4E4F4G4A4B4C5D5E5F5G5A5B5C#4Eb4F#4Ab4Bb4C#5Eb5F#5Ab5Bb5C4GBbC5DF

Root position from G4: G4, Bb4, D5, F5. Middle C is C4.

Gm7 on the guitar

Standard tuning (E A D G B E). Strings run low E on the left to high e on the right, frets downwards; × is a muted string, ○ an open string, and each dot shows the note it sounds, with the root in blue-green. Every shape below has G as its lowest note.

GGDDFFBbBbDDGG
E-shape barre, root on the E string at fret 3
3 5 3 3 3 3 (low E to high e)
Sounds G2 D3 F3 Bb3 D4 G4
10fr×GGDDFFBbBbDD
A-shape barre, root on the A string at fret 10
x 10 12 10 11 10 (low E to high e)
Sounds G3 D4 F4 Bb4 D5

The barre shapes are movable: an E-shape chord's root is the note under your first finger on the low E string, an A-shape chord's root is the note on the A string. Slide the same grip up or down to play minor seventh chords on other roots.

Inversions of Gm7

An inversion puts a note other than the root in the bass. The name is what semicord's chord finder calls those notes played bottom to top; a slash name like C/E means a C chord with E in the bass.

PositionNotes, bass firstNamedListen
Root positionG Bb D FGm7
1st inversionBb D F GBb6 (also read as Gm7/Bb)
2nd inversionD F G BbGm7/D
3rd inversionF G Bb DGm7/F

Where Gm7 fits

Gm7 is ii7 in F major, iii7 in Eb major, vi7 in Bb major. As ii7 it is the first chord of the ii–V–I that ends countless jazz and pop phrases: Gm7 → C7 → Fmaj7.