C Minor 7th
Reviewed for accuracy · Last updated June 2026 · Maintained by Justin Evans
The C Minor 7th chord contains the notes C, E♭, G, and B♭.
Also written Cm7 · Notes: C, E♭, G, B♭ · Piano keys: C E♭ G B♭
Practice C Minor 7th
Reading about it is one thing. Drilling it is what makes it automatic.
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.
Notes
C Minor 7th Inversions
| Position | Notes |
|---|---|
| Root Position | C – E♭ – G – B♭ |
| 1st Inversion | E♭ – G – B♭ – C |
| 2nd Inversion | G – B♭ – C – E♭ |
| 3rd Inversion | C – E♭ – G – B♭ |
Key Signature
A chord has no key signature of its own, but the C Minor 7th is the tonic (i) chord of C Minor, which shares the signature of its relative major, Eb Major — 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.
Mnemonic: Battle Ends And Down Goes Charles’ Father
Chords in the Key of C Minor
These are the triads built on each degree of the C minor scale:
Same Notes, Other Names
The notes C – E♭ – G – B♭ aren’t exclusive to this chord. Depending on which note is the bass and how the chord functions, the same pitches also spell:
Theory: Intervals
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 is the C Minor 7th chord on piano?
What notes are in the C Minor 7th chord?
How does C Minor 7th differ from C Dominant 7th?
How is C Minor 7th used in music?
What genres commonly use Minor 7th chords?
What songs use Minor 7th chords?
What is the ii–V–I progression?
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
References & Further Reading
How this chord page is sourced & verified
The note names, intervals, fingering, and harmony on this page are drawn from the established body of Western music theory and verified against the conventions below — the same fundamentals taught in conservatories and music programs. We list categories of source material rather than individual titles, and reference the standards themselves rather than any single edition.
- Standard music theory texts — Widely taught fundamentals of pitch, rhythm, and notation.
- Western tonal harmony conventions — Established rules for chord construction, voice leading, and key relationships.
- Interval and chord construction standards — The conventional spelling of intervals, triads, sevenths, and extensions.
- Scale and mode theory — The common derivation of major, minor, pentatonic, blues, and modal scales.
- Piano pedagogy and technique references — Long-standing practices for fingering, hand position, and practice.
Spot something that looks off? Use the note form below — corrections are reviewed by hand.
Leave a note
Spotted a typo, have a question, or want to add something? We read every note.