Cm (C minor) chord is commonly played as a barre chord:
Other options exist, but they are not as popular due to awkward finger position, and the need to mute 1st and 6th strings.
About Cm chord
Let’s look at some music theory behind Cm chord:
- Chord formula: 1 – b3 – 5
- Chord notes: C – Eb – G
- Alternative names: Cm, Cmin, C−
- Common functions:
- i-chord in C minor key
- ii-chord in Bb major key
- iii-chord in Ab major scale
- vi-chord in Eb major key