C Minor Seventh Chord

Chord Tones: C 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 C minor seventh chord commonly functions as the tonic (I) in C major/minor. 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 C Minor Seventh Chord specifically contains 4 notes: C, D♯, G, A♯ (formula: 1-♭3-5-♭7). On piano, C-rooted chords sit entirely on white keys in their basic triad form, making them the first chords most students learn. Pop, folk, and singer-songwriter music heavily use C-rooted chords because open-position guitar voicings and piano shapes are immediately accessible.

Common Progressions

The C 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 C 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 C Minor Seventh Chord

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