C minor chord (Cm)

The C minor chord (Cm) is a minor triad made of C, E♭ and G: root, minor third and perfect fifth.

It is the i in C minor and the vi in E♭ major; its relative major is E♭ major, and G dominant seventh leads into it as its V7.

Below: voicings, notes on the fretboard, ukulele, piano, inversions and progressions.

How to play C minor on guitar

There are 2 guitar voicings.

Frets from the 6th string to the 1st: x = not played, 0 = open string.

  • Voicing 1: x-3-5-5-4-3, barre at fret 3, with C in the bass (fingers x-1-3-4-2-1).
  • Voicing 2: 8-10-10-8-8-8, movable E-shape barre chord at fret 8, with C in the bass.

Notes of the C minor chord on the fretboard

C minor has 3 notes: C, E♭ and G. This is where they fall on each string, from the nut to the 12th fret (fret number in parentheses):

  • String 6 (E): G (3) · C (8) · E♭ (11)
  • String 5 (A): C (3) · E♭ (6) · G (10)
  • String 4 (D): E♭ (1) · G (5) · C (10)
  • String 3 (G): G (0) · C (5) · E♭ (8) · G (12)
  • String 2 (B): C (1) · E♭ (4) · G (8)
  • String 1 (E): G (3) · C (8) · E♭ (11)

Formula and intervals of C minor

Its formula is 1-♭3-5; in semitones from the root, 0-3-7.

  • C: Root, the note that gives the chord its name
  • E♭: Minor third (m3), 3 semitones above C
  • G: Perfect fifth (P5), 7 semitones above C

C minor on ukulele

  • Ukulele (G C E A): 0-3-3-3; it sounds G, E♭, G and C.

C minor on piano

  • Keys: C4, E♭4 and G4.

Inversions of C minor

Each inversion puts a different note in the bass.

  • Root position: C, E♭ and G, with C in the bass.
  • First inversion (Cm/E♭): E♭, G and C, with E♭ in the bass.
  • Second inversion (Cm/G): G, C and E♭, with G in the bass.

Keys that use C minor

C minor appears in 6 major and minor keys.

KeyDegreeFunction
B♭ major (2 flats)iiSupertonic
A♭ major (4 flats)iiiMediant
E♭ major (3 flats)viSubmediant
C minor (3 flats)iTonic
G minor (2 flats)ivSubdominant
F minor (4 flats)vDominant

Progressions with C minor

  • Pop progression in E♭ major (I–V–vi–IV): E♭ – B♭ – Cm – A♭
  • Pop progression starting on vi in E♭ major (vi–IV–I–V): Cm – A♭ – E♭ – B♭
  • Turnaround in E♭ major (I–vi–ii–V): E♭ – Cm – Fm – B♭
  • Minor cadence in C minor (i–iv–V7): Cm – Fm – G7
  • Minor pop progression in C minor (i–VI–III–VII): Cm – A♭ – E♭ – B♭

Frequently asked questions

What notes are in the C minor chord?

C, E♭ and G: root, minor third and perfect fifth. Its formula is 1-♭3-5.

Which keys use C minor?

Mainly as the i in C minor and the vi in E♭ major. In total it appears in 6 major and minor keys.

What is the relative major of C minor?

E♭ major. C minor and E♭ major are the tonic chords of two relative keys, which share the same key signature and the same scale notes.