Cm is a minor, spelled C, Eb and G. In Drop D tuning (D2 A2 D3 G3 B3 E4) the easiest shape is x31013, which sits at fret 1, spans 2 frets, lets 1 string ring open and mutes 1 string. 12 positions for it are shown below, from the nut up to fret 13.
Notes and intervals
Note
C
Eb
G
Interval
1P
3m
5P
12 ways to play it
Ordered by how hard they are to fret, easiest first, one per position on the neck. Fret numbers are relative to the position marked beside each grid.
x31013sits at fret 1, spans 2 frets, lets 1 string ring open and mutes 1 stringx3504xsits at fret 3, spans 2 frets, lets 1 string ring open and mutes 2 strings101010888sits at fret 8 and needs a barre across 3 strings at fret 85655xxsits at fret 5, needs a barre across 4 strings at fret 5 and mutes 2 stringsxx554xsits at fret 4, spans 1 fret and mutes 3 strings10101001311sits at fret 10, needs a barre across 3 strings at fret 10 and lets 1 string ring openx151301315sits at fret 13, spans 2 frets, lets 1 string ring open and mutes 1 string1061008xsits at fret 6, spans 4 frets, lets 1 string ring open and mutes 1 stringxx1301311sits at fret 11, spans 2 frets, lets 1 string ring open and mutes 2 stringsxx131213xsits at fret 12, spans 1 fret and mutes 3 stringsx310xxsits at fret 1, spans 2 frets, lets 1 string ring open and mutes 3 stringsx3101xsits at fret 1, spans 2 frets, lets 1 string ring open and mutes 2 strings
Keys Cm belongs to
Cm is diatonic to 24 of the 96 keys this app knows, playing a different role in each.