Learn › Cm6 Chord on Piano (C Minor 6th)
New Released in April 2026
Cm6 Chord on Piano (C Minor 6th)
To play the Cm6 chord on the piano, press C, Eb, G and A. It is the minor triad Cm plus the major 6th, A. Its sound: mysterious and cool, a minor chord with a lifted top.
No account, no download. The demo has limited content. Advanced features are in ChordRunner Premium.
- MIDI keyboard
- Digital or acoustic piano
- Guitar
- Computer, phone or tablet
Cm6 and Am7b5
Cm6 shares all four notes with Am7b5. Same keys, different bass: from C it is a minor sixth, from A a half-diminished seventh.
The formula of Cm6
Formula 1 b3 5 6. Count from C and every number is a step of the C major scale, and a b lowers it by one key.
Start chord: Cm
| Note | Step | Interval | Keys from C |
|---|---|---|---|
| C | 1 | root | 0 |
| Eb | b3 | minor 3rd | 3 |
| G | 5 | perfect 5th | 7 |
| A | 6 | major 6th | 9 |
Where your hand goes for Cm6
Same notes, different order. Pick the position closest to the chord you just played.
Root position: C Eb G A
1st inversion: Eb G A C
2nd inversion: G A C Eb
3rd inversion: A C Eb G
Which fingers
| Right hand | C Eb G A | 1 2 3 5 |
|---|---|---|
| Left hand | C Eb G A | 5 3 2 1 |
Practise Cm6 in four steps
- Say the notes out loud while you press them: C, Eb, G and A.
- Switch between Cm and Cm6 ten times without looking at your hand.
- Try Cm6 in 1st inversion, the position that sits closest to your last chord.
- Then test it in random order among other chords: recall under time pressure is what sticks.
Keep each session short and frequent and Cm6 will become automatic.
When to play Cm6
- Cm6 works as a home chord in C minor, a colour heard in film and jazz endings.
- Inside Bb major the same four notes are the ii chord, so it fits there with no outside note.
Train Cm6 with ChordRunner
In ChordRunner every correct chord moves your runner forward. Plug in a MIDI keyboard or let the microphone listen to your piano. Sixth chords come in the level "Sixth & Add Chords".
Play the demoCommon questions
What notes are in the Cm6 chord?
Cm6 has 4 notes: C, Eb, G and A. Formula 1 b3 5 6.
Is Cm6 the same as Am7b5?
Same keys, yes: Cm6 and Am7b5 contain C, Eb, G and A. The name follows the bass note, C for Cm6 and A for Am7b5.
Where is Cm6 used?
Cm6 works as a home chord in C minor, a colour heard in film and jazz endings. Inside Bb major the same four notes are the ii chord, so it fits there with no outside note.
Can I practise Cm6 with a MIDI keyboard or a real piano?
Yes. In ChordRunner a USB MIDI keyboard is detected automatically, and an acoustic or digital piano works through the microphone. The game checks that C, Eb, G and A sound together.
Your instrument is the controller.
ChordRunner is a browser game that teaches piano and guitar chords: a chord appears on screen, you play it on a real instrument, and your runner jumps. MIDI keyboard or microphone, both work.
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