Fbmaj7 is a major seventh, spelled Fb, Ab, Cb and Eb. In Ukulele (low G) tuning (G3 C4 E4 A4) the easiest shape is 1302, which sits at fret 1, spans 2 frets and lets 1 string ring open. 12 positions for it are shown below, from the nut up to fret 13.
Notes and intervals
Note
Fb
Ab
Cb
Eb
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.
1302sits at fret 1, spans 2 frets and lets 1 string ring open9111111sits at fret 9 and spans 2 fretsx446sits at fret 4, needs a barre across 2 strings at fret 4 and mutes 1 string9876sits at fret 6 and spans 3 frets8877sits at fret 7 and needs a barre across 2 strings at fret 7880xsits at fret 8, needs a barre across 2 strings at fret 8, lets 1 string ring open and mutes 1 string1315014sits at fret 13, spans 2 frets and lets 1 string ring open4347sits at fret 3 and spans 4 frets13151214sits at fret 12 and spans 3 frets1315011sits at fret 11, spans 4 frets and lets 1 string ring open4446sits at fret 4 and needs a barre across 3 strings at fret 4130xsits at fret 1, spans 2 frets, lets 1 string ring open and mutes 1 string
Keys Fbmaj7 belongs to
Fbmaj7 is diatonic to 16 of the 96 keys this app knows, playing a different role in each.