Diminished (Whole-Half) guitar scale
See the Diminished (Whole-Half) scale on a guitar fretboard, learn its notes and degrees, and practice it in any key.
What it is
Eight notes alternating whole step and half step (whole-half): the scale of the diminished chord. Dark, nervous and a little classical.
How to use it
Play it over fully diminished 7 chords. The pattern repeats every minor third, so the shape slides up the neck in steps of three frets.