Piano chord

C Minor-Major 7th Chord

Cm(maj7) is a minor-major 7th chord built on C. It contains the notes C – E♭ – G – B.

Cm(maj7)

Also written: CmM7, Cm(Δ7)

C

G

B

E♭

Notes in Cm(maj7)

Count up from C using the intervals below. The formula shows each note relative to the C major scale.

Notes	Intervals	Formula	Semitones
C	Root	1	0
E♭	Minor 3rd	♭3	3
G	Perfect 5th	5	7
B	Major 7th	7	11

Right hand: fingers 1–2–3–5 (thumb on C).
Left hand: fingers 5–3–2–1, or play just the root in the left hand and the other notes in the right.
Inversions keep your hand closer to the previous chord — see below.

An inversion puts a different note of Cm(maj7) at the bottom. The notes stay the same, the colour and voice leading change.

Minor's sadness paired with the major 7th's shimmer — an unsettling beauty. Cinematic and rare.

Sound: Mysterious & cinematic

Cm(maj7) is not built only from the notes of any major or natural minor key — it is a chromatic chord, used for colour and tension.

Hear Cm(maj7) with different sounds and compare it with other chords in the interactive builder.

If chords sound sour even when you play the right notes, the piano is probably out of tune. Our technicians tune pianos across Israel.