A Minor Seventh Chord

Chord Tones: A Minor Seventh Chord

Symbol: m7, min7, -7 — Formula: 1-♭3-5-♭7

Chord Notation

Roman numeral (e.g. I, IV, V) and Nashville Number notation are key-dependent. See Keys pages for chord function within specific keys.

Inversions

Harmonic Function

The A minor seventh chord commonly functions as the submediant (vi) in C major or dominant (V) in D major. Its harmonic role varies by key — in major keys it provides subdominant or supertonic color.

The minor seventh chord adds a minor seventh to the minor triad, creating a smooth, mellow sound. It is ubiquitous in jazz, R&B, and funk as both a chord of repose and a stepping stone in progressions. The A Minor Seventh Chord specifically contains 4 notes: A, C, E, G (formula: 1-♭3-5-♭7). On guitar, A-rooted chords anchor to the open A string (5th string), and barre chord shapes rooted on A form the basis of the "A-shape" CAGED system. Blues, rock, and country music use A-rooted chords extensively — the classic 12-bar blues often starts on A, and many rock power chord riffs center on the open A string.

Common Progressions

The A Minor Seventh Chord frequently appears in these progression patterns (shown in Roman numeral notation relative to key):

• ii-V-I
• i-iv-v

Songs Featuring the Minor Seventh Chord

Well-known songs where the A Minor Seventh Chord — or this chord type — plays a prominent role:

• So What – Miles Davis
• Autumn Leaves – jazz standard
• Is This Love – Bob Marley

Tuning Frequencies Across Temperaments

Frequencies shown at A=440 Hz. View full temperament data for any note.

Scales Containing the A Minor Seventh Chord

These scales include the A Minor Seventh Chord as a diatonic or characteristic chord: