Chords in the key of A minor on guitar
The key of A minor has seven diatonic chords: Am, B°, C, DmDmDmDm, EmEmEmEm, F and G. As sevenths: Am7Am7Am7Am7, Bm7b5, Cmaj7Cmaj7Cmaj7Cmaj7, Dm7Dm7Dm7Dm7, Em7Em7Em7Em7, Fmaj7Fmaj7Fmaj7Fmaj7 and G7G7G7G7. They come from the A natural minor scale, A, B, C, D, E, F and G, one on each note. On guitar, the shapes below are the seventh chords of every degree, and the tonic one has A in the bass.
On the guitar, six strings give the chord room to breathe — some positions use them all, others ask you to mute the lowest ones. Its hollow wooden body gives every chord a warm, natural ring that blooms and fades on its own.
Seventh chords in A minor on guitar
These are the chords of the natural minor scale. In practice the v often becomes V (major) or V7, borrowed from the harmonic minor, to create the leading tone that pulls back to the tonic.