Every scale and chord, every instrument, one screen.

Minor chords

A minor chord has three notes: the root, minor third and perfect fifth. Its formula is 1 b3 5. The root, minor 3rd and 5th. Lowering the 3rd of a major chord a half step makes it minor.

On C it is written Cm, and also Cmin and C-.

Minor chords in every key

Every minor chord, with its page on each instrument
ChordNotesShapes
CmC Eb Gguitar · piano · bass
C#mC# E G#guitar · piano · bass
DmD F Aguitar · piano · bass
EbmEb Gb Bbguitar · piano · bass
EmE G Bguitar · piano · bass
FmF Ab Cguitar · piano · bass
F#mF# A C#guitar · piano · bass
GmG Bb Dguitar · piano · bass
G#mG# B D#guitar · piano · bass
AmA C Eguitar · piano · bass
BbmBb Db Fguitar · piano · bass
BmB D F#guitar · piano · bass

Minor compared

On C: how minor differs from the chords it is confused with
ChordSymbolFormulaNotesDifference
MinorCm1 b3 5C Eb G
MajorC1 3 5C E GC and Cm share C and G. C has E, the 3rd, where Cm has Eb, the flat 3rd.
Minor 7Cm71 b3 5 b7C Eb G BbCm7 is Cm (C, Eb and G) with Bb, the flat 7th, added.
DiminishedCdim1 b3 b5C Eb GbCdim and Cm share C and Eb. Cdim has Gb, the flat 5th, where Cm has G, the 5th.

Questions

What is a minor chord?

A minor chord has three notes: the root, minor third and perfect fifth. Its formula is 1 b3 5. The root, minor 3rd and 5th. Lowering the 3rd of a major chord a half step makes it minor.

How do you write a minor chord?

On C it is written Cm, and also Cmin and C-.

What is the difference between Cm and C?

Cm and C share C and G. Cm has Eb, the flat 3rd, where C has E, the 3rd.