Cm7 Minor 7th Chord

The C Minor 7th chord contains: C, D#, G, A#.

These notes are derived by applying the minor 7th interval formula (0–3–7–10 semitones) to the root note C.

A minor triad with a minor seventh.

Smooth, soulful sound central to jazz and soul music. The Cm7 chord is used across pop, rock, jazz, and classical music. As the I chord in the key of C major, it functions as the most stable resting point in progressions.

On piano, play C, D#, G, A# simultaneously.

In root position, C is the lowest note. Inversions move the bass note up — first inversion has D# lowest, second inversion has G lowest.

A minor 7th chord has 4 notes: C, D#, G, A# (in C).

It is a 7th chord, extending beyond the basic triad.

The C major chord (C–E–G) uses a major third (4 semitones), giving it a bright, happy sound.

The C minor chord (C–D#–G) uses a minor third (3 semitones), giving it a darker, emotional sound.

Cm7 naturally serves as the I chord in the key of C major.

It also appears as IV in the key of G major, and as V in the key of F major.

Yes.

The ukulele uses GCEA tuning with 4 strings. The Cm7 chord notes (C, D#, G, A#) can be fretted on a ukulele, though the shapes differ from guitar due to the 4-string layout and shorter scale.

In the key of C major, Cm7 pairs naturally with F major (IV), G major (V), and Am (vi).

The classic I–IV–V (Cm7–F–G) is the foundation of blues, country, and rock.

An inversion places a non-root note in the bass.

Cm7 root position: C in bass. First inversion: D# in bass. Second inversion: G in bass. Inversions create smoother bass line movement without changing the harmony.

Remember the formula: 0–3–7–10 semitones from root.

For Cm7: start on C, add 3 semitones, then 7 semitones, then 10 semitones. Practicing this across all 12 roots builds instant recognition of any minor 7th chord.