Cm6 is the C minor 6 chord. Its notes are C, E♭, G and A. Minor with a natural sixth. Notice how it differs from a minor seventh chord.
How to play Cm6
Partial barre
fret 5
x35545
Barre tip: the long bar marked BARRE means one finger presses several strings at once. Lay it flat just behind the fret, press with the bony outer edge rather than the soft middle, and keep your thumb behind the neck. Pick each string one at a time and nudge the finger until none of them buzz.
Numbers show frets from the low E string to the high e string; x means don't play that string.
What's in Cm6
C1
E♭♭3
G5
A6
Formula
1 · ♭3 · 5 · 6
Also written
Cm6, Cmin6
Chord type
Minor 6
Cm6 notes across the neck
Every C, E♭, G and A on the first 12 frets. The filled dots are the root, C. Build your own shape from any nearby group.