Cm guitar chord

Cm (C minor) is built from C, Eb and G, the degrees 1–b3–5. On guitar, the main shape is x 3 5 5 4 3, the first diagram, marked with the star.

Turn off the living-room light without moving a thing. Same furniture; different mood. That's exactly what Cm does to C major. Press play down there and watch the light go out.

Hear Cm before you play

Why Cm sounds this way

The trick is smaller than it sounds. Two of the three notes didn't move: C and G stayed put. Only the middle one dropped — a half step, the smallest distance in music — and became D#. Go back to the audio and catch the arpeggio note by note and stop at the second note. That's the one. Half a step separates a sunny day from a Monday morning.

How to play Cm on guitar

On the guitar, six strings give the chord room to breathe — some positions use them all, others ask you to mute the lowest ones. So the first position below is your way in — it's the main shape — that's why it carries the ⭐. And do the exercise that's worth a whole lesson: C major, then Cm, then major again. Back and forth ten times, slowly. Your ear learns the difference before your brain does.

Precision Tuner: Get in tune before you play: chromatic tuner and reference tones, free in standard tuning · try it in Chord and Fret

Once the first shape comes out without thinking, the positions below are waiting. That's where Cm lives in songs that roam the neck.

Cm notes and degrees

Cm stacks the root C, the minor third Eb and the perfect fifth G.

Where Cm shows up

In real music, Cm works almost always as i in C minor, v in F minor, iv in G minor. In pop everywhere it tends to be the famous vi — the chord the chorus runs to when it wants to get serious without changing key. You've heard it a thousand times; now you'll start noticing it.

Transpose & Capo: Need it in another key? Transpose the progression for free; finding the best capo is part of Pro · use it in Chord and Fret

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Real songs pass through here: Pagode · pagode cycle · Pagode · climb · Samba · circle-of-fifths progression · Samba · ii-V-I

Where Cm usually goes

Treating Cm as the home chord (i) of a minor key, it usually moves toward the pre-dominant (Fm) or the dominant (G7, from harmonic minor), and the dominant pulls back home. It's a tendency, not a law.

Going beyond Cm

To solo over it, C Dorian (C D Eb F G A Bb · 1 2 b3 4 5 6 b7: the minor scale with a major sixth — the minor that smirks); C Aeolian (C D Eb F G Ab Bb · 1 2 b3 4 5 b6 b7: the natural minor, the major scale's relative sibling); C Phrygian (C Db Eb F G Ab Bb · 1 b2 b3 4 5 b6 b7: the minor with a lowered second — a Spanish seasoning) work in full. The swaps below are the chord's cousins: different color, same job.

Scale: The scale's positions across the neck, with degree, note and finger labels, free; playing the scale and the tempo-ramp exercise are part of Pro · use it in Chord and Fret

Scales to improvise over Cm

To improvise over Cm as home, the C Aeolian scale covers it whole: it contains every note of the chord. The best fit depends on the key, the surrounding chords and the tensions you want. And when the dominant (G) pulls back, the leading tone B is the note that wants to resolve home.

Swaps that work:

• Ebmaj7Ebmaj7Ebmaj7Ebmaj7 — Relative major (♭III)
• F7F7F7F7 — It's the ii; resolves to this V

Reharmonize: Want richer substitutions? Reharmonize's Subtle and Medium levels are free; Bold and Jazz are part of Pro · open in Chord and Fret

This chord has a calmer sibling: Cm7. Same seriousness, relaxed shoulders — worth the visit.

Updated October 20, 2026