Cb7 is a dominant seventh, spelled Cb, Eb, Gb and Bbb. In Drop D tuning (D2 A2 D3 G3 B3 E4) the easiest shape is x21202, which sits at fret 1, spans 1 fret, 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
Cb
Eb
Gb
Bbb
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.
x21202sits at fret 1, spans 1 fret, lets 1 string ring open and mutes 1 stringx24242sits at fret 2, needs a barre across 5 strings at fret 2 and mutes 1 string907877sits at fret 7, needs a barre across 4 strings at fret 7 and lets 1 string ring openx04445sits at fret 4, needs a barre across 3 strings at fret 4, lets 1 string ring open and mutes 1 string90980xsits at fret 8, spans 1 fret, lets 2 strings ring open and mutes 1 string90911011sits at fret 9, spans 2 frets and lets 2 strings ring openx141314014sits at fret 13, spans 1 fret, lets 1 string ring open and mutes 1 string96780xsits at fret 6, spans 3 frets, lets 1 string ring open and mutes 1 string13013110xsits at fret 11, spans 2 frets, lets 2 strings ring open and mutes 1 string707805sits at fret 5, spans 3 frets and lets 2 strings ring openx013141214sits at fret 12, spans 2 frets, lets 1 string ring open and mutes 1 stringx14131110xsits at fret 10, spans 4 frets and mutes 2 strings
Keys Cb7 belongs to
Cb7 is diatonic to 8 of the 96 keys this app knows, playing a different role in each.