semicord

Am7 A minor seventh chord

Notes
A C E G
Formula
1 b3 5 b7
Semitones
0 3 7 10 above the root
Other symbols
Amin7, A−7

A to C is a minor third (3 semitones), C to E is a major third (4 semitones), E to G is a minor third (3 semitones). A minor triad plus a minor seventh (G). With C in the bass the same four notes are read as C6.

Am7 on the piano

C4D4E4F4G4A4B4C5D5E5F5G5A5B5C#4Eb4F#4Ab4Bb4C#5Eb5F#5Ab5Bb5C4ACC5EG

Root position from A4: A4, C5, E5, G5. Middle C is C4.

Am7 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 A as its lowest note.

×AEEGCCE
Open position (A-shape)
x 0 2 0 1 0 (low E to high e)
Sounds A2 E3 G3 C4 E4
5frAAEEGGCCEEAA
E-shape barre, root on the E string at fret 5
5 7 5 5 5 5 (low E to high e)
Sounds A2 E3 G3 C4 E4 A4

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 Am7

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 positionA C E GAm7
1st inversionC E G AC6 (also read as Am7/C)
2nd inversionE G A CAm7/E
3rd inversionG A C EAm7/G

Where Am7 fits

Am7 is ii7 in G major, iii7 in F major, vi7 in C major. As ii7 it is the first chord of the ii–V–I that ends countless jazz and pop phrases: Am7 → D7 → Gmaj7.