GbmM7 chord
Gb minor major seventh
1 / 7
3
5
7
10
Play GbmM7 on ukulele at frets 2-5-2-4 in gCEA tuning.
The GbmM7 chord has the formula 1, b3, 5, 7 with notes Gb, A, Db, F
The minor major seventh chord sees the most use in jazz and classical music. Some call it the Hitchcock chord for its use in the score for his 1960 thriller, Psycho.