Cm7 chord: minor seventh
Cm7 is the minor seventh chord on C: C, Eb, G and Bb (1–b3–5–b7). Cm7 stacks the root C, the minor third Eb, the perfect fifth G and the minor seventh Bb. The m7 is the minor triad with a minor seventh.
Notes in Cm7: C – Eb – G – BbFormula: 1 – b3 – 5 – b7In the formula, the numbers count steps of the major scale starting from the note that names the chord; "b" lowers a half step, "#" raises one — and a slash names the bass note.
It softens the triad and is one of the most versatile chords in tonal harmony.
The same chord on all four instruments
Where to use it
In pop and MPB it is the most common 'support' minor chord — the one that holds the harmony together without calling attention to itself. A classic example is Dm7Dm7Dm7Dm7 calling for G7G7G7G7 in the key of C, that is, setting the stage for the music to return to its main chord.
See Cm7 voicings on the fretboard →See Cm7 voicings on the fretboard →See Cm7 voicings on the fretboard →See Cm7 voicings on the fretboard →
Part of the Sevenths family.