C7 is a dominant seventh, spelled C, E, G and Bb. In DADGAD tuning (D2 A2 D3 G3 A3 D4) the easiest shape is x32012, 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 14.
Notes and intervals
Note
C
E
G
Bb
Interval
1P
3M
5P
7m
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.
x32012sits at fret 1, spans 2 frets, lets 1 string ring open and mutes 1 stringx32332sits at fret 2, needs a barre across 4 strings at fret 2 and mutes 1 stringxx109108sits at fret 8, spans 2 frets and mutes 2 strings1078010xsits at fret 7, spans 3 frets, lets 1 string ring open and mutes 1 stringx151401314sits at fret 13, spans 2 frets, lets 1 string ring open and mutes 1 string575578sits at fret 5 and needs a barre across 4 strings at fret 5x35375sits at fret 3, needs a barre across 3 strings at fret 3 and mutes 1 stringx1514151514sits at fret 14, needs a barre across 4 strings at fret 14 and mutes 1 stringx15141213xsits at fret 12, spans 3 frets and mutes 2 strings10101001314sits at fret 10, needs a barre across 3 strings at fret 10 and lets 1 string ring openxx1091310sits at fret 9, spans 4 frets and mutes 2 stringsx3201xsits at fret 1, spans 2 frets, lets 1 string ring open and mutes 2 strings
Keys C7 belongs to
C7 is diatonic to 8 of the 96 keys this app knows, playing a different role in each.