Fb7 is a dominant seventh, spelled Fb, Ab, Cb and Ebb. In Standard tuning (E2 A2 D3 G3 B3 E4) the easiest shape is 020100, which sits at fret 1, spans 1 fret and lets 4 strings ring open. 12 positions for it are shown below, from the nut up to fret 13.
Notes and intervals
Note
Fb
Ab
Cb
Ebb
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.
020100sits at fret 1, spans 1 fret and lets 4 strings ring open020404sits at fret 2, spans 2 frets and lets 3 strings ring open050404sits at fret 4, spans 1 fret and lets 3 strings ring open076700sits at fret 6, spans 1 fret and lets 3 strings ring open050434sits at fret 3, spans 2 frets and lets 2 strings ring open056700sits at fret 5, spans 2 frets and lets 3 strings ring open0110900sits at fret 9, spans 2 frets and lets 4 strings ring open079790sits at fret 7, needs a barre across 3 strings at fret 7 and lets 2 strings ring open01401300sits at fret 13, spans 1 fret and lets 4 strings ring open01101300sits at fret 11, spans 2 frets and lets 4 strings ring open014013012sits at fret 12, spans 2 frets and lets 3 strings ring open011013010sits at fret 10, spans 3 frets and lets 3 strings ring open
Keys Fb7 belongs to
Fb7 is diatonic to 8 of the 96 keys this app knows, playing a different role in each.