C Minor 7th
Hear the C Minor 7th chord played for you.
Cm7
C – E♭ – G – B♭
Formula:R-m3-P5-m7
Intervals:P1-m3-P5-m7
Scale Degrees:1-b3-5-b7
Introduction
The C Minor 7th chord is a four-note chord made up of C, E♭, G, and B♭. It is built from a root, minor third, perfect fifth, and minor seventh.
The C Minor 7th piano chord (Cm7) consists of the notes C, Eb, G, Bb. It is a minor triad with an added minor 7th, giving it a smooth, dark, soulful sound common in jazz and R&B. Formula: R-m3-P5-m7 | Scale degrees: 1-b3-5-b7.
Notes
C Minor 7th Inversions
| Position | Notes |
|---|---|
| Root Position | C4 – Eb4 – G4 – Bb4 |
| 1st Inversion | Eb4 – G4 – Bb4 – C5 |
| 2nd Inversion | G4 – Bb4 – C5 – Eb5 |
| 3rd Inversion | C4 – Eb4 – G4 – Bb3 |
Key Signature
The key of C Minor 7th has 3 flats.
B♭E♭A♭
Order of flats
Flats are added in a fixed order — the reverse of the sharp order. Each new flat key adds the next flat on the list.
B♭E♭A♭D♭G♭C♭F♭
Mnemonic: Battle Ends And Down Goes Charles’ Father
Chords in the Key of C Minor
These are the diatonic triads built on each degree of the C minor scale:
C
D
E
F
G
A
B
C
D
E
F
G
A
B
i — C Minor (minor)
Theory: Intervals
Formula: R-m3-P5-m7
Intervals: P1-m3-P5-m7
The C Minor 7th is built by stacking intervals from the root note. The formula R-m3-P5-m7 describes the scale degrees used. The intervals P1-m3-P5-m7 show the distance between each note in the chord.
C Minor 7th — Frequently Asked Questions
What notes are in the C Minor 7th chord?
The C Minor 7th chord (Cm7) contains four notes: C (root), Eb (minor third), G (perfect fifth), and Bb (minor seventh). The minor triad with a minor seventh gives this chord its smooth, dark, soulful quality.
How does C Minor 7th differ from C Dominant 7th?
Both have C as root and Bb as seventh. The difference is the third: Cm7 has Eb (minor third) while C7 has E (major third). Cm7 sounds smooth and introspective; C7 sounds bright and driving. This one-semitone difference defines whether the chord is minor or dominant.
How is C Minor 7th used in music?
Cm7 commonly functions as the ii chord in Bb Major (Cm7–F7–Bbmaj7) or as the i chord in C minor jazz harmony. It is one of the most versatile chords in jazz, R&B, neo-soul, and lo-fi hip-hop, providing a smooth, mellow foundation.
What genres commonly use Minor 7th chords?
Minor 7th chords are essential in jazz, R&B, neo-soul, soul, funk, lo-fi hip-hop, and bossa nova. They provide the smooth, dark quality that defines these genres. The ii–V–I progression (which starts with a minor 7th chord) is the most common chord movement in jazz.
What songs use Minor 7th chords?
Minor 7th chords appear throughout Autumn Leaves (the most famous jazz standard), So What (Miles Davis, which uses only two minor 7th chords), and Black Orpheus (Luiz Bonfa). In R&B, artists like D'Angelo and Erykah Badu build entire songs on minor 7th foundations.
What is the ii–V–I progression?
The ii–V–I is the most important progression in jazz: a minor 7th chord (ii) moves to a dominant 7th (V) then resolves to a major 7th (I). In Bb Major: Cm7–F7–Bbmaj7. Learning this in all 12 keys is essential for jazz piano.
Practice Tips
- Play C Minor then add Bb — hear how the minor seventh adds depth and smoothness to the minor triad.
- Compare Cm7 with C7 — one semitone (Eb vs E in the third) defines whether the chord is dark and smooth or bright and driving. Train your ear on this distinction.
- Practice Cm7 as the ii chord in Bb: Cm7 → F7 → Bbmaj7. The ii–V–I is the most important jazz progression — learn it starting from Cm7.
- Try the So What voicing: Cm7 built as D–G–C–F–Bb (stacked fourths). This modal voicing defined an era of jazz piano.
- Cm7 is a lo-fi hip-hop staple — try looping Cm7 → Fm7 with a relaxed rhythmic pattern for an instantly atmospheric sound.
- Practice rootless Cm7: play Eb–G–Bb without the C root — this three-note voicing is standard when a bassist handles the root.
Related Tools
Chord FinderLook up any chord — see the notes, hear it, and play along.Chord DrillTimed drills to build speed and recognition across all chord types.Practice RoomPlug in a MIDI keyboard and get real-time feedback on every chord and scale.Circle of FifthsVisualize key relationships, relative minors, and key signatures.MIDI MonitorLive MIDI message stream with note names, velocity, and a scrolling staff.