D7 is a dominant seventh, spelled D, F#, A and C. In Open G tuning (D2 G2 D3 G3 B3 D4) the easiest shape is 050777, which sits at fret 5, spans 2 frets and lets 2 strings ring open. 12 positions for it are shown below, from the nut up to fret 11.
Notes and intervals
Note
D
F#
A
C
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.
050777sits at fret 5, spans 2 frets and lets 2 strings ring open020214sits at fret 1, spans 3 frets and lets 2 strings ring open050534sits at fret 3, spans 2 frets and lets 2 strings ring open020534sits at fret 2, spans 3 frets and lets 2 strings ring open0545xxsits at fret 4, spans 1 fret, lets 1 string ring open and mutes 2 strings0110111010sits at fret 10, needs a barre across 2 strings at fret 10 and lets 2 strings ring open0777710sits at fret 7, needs a barre across 4 strings at fret 7 and lets 1 string ring open011014130sits at fret 11, spans 3 frets and lets 3 strings ring open057770sits at fret 5, spans 2 frets and lets 2 strings ring open070577sits at fret 5, spans 2 frets and lets 2 strings ring open077570sits at fret 5, spans 2 frets and lets 2 strings ring open024210sits at fret 1, spans 3 frets and lets 2 strings ring open
Keys D7 belongs to
D7 is diatonic to 8 of the 96 keys this app knows, playing a different role in each.