Watch the Symmetrical Diminished online guitar lesson by Chris Buono from Modes That Matter
By name alone you can predict at least one attribute contained with the symmetrical diminished scale. That’s right, it’s symmetrical! Weighing in at 8 notes before playing an octave this scale is the lone octatonic formula, which by the way runs in a similar fashion to the altered scale. The formula is as follows: 1 b9 #9 3 #4/#11 5 6 b7. The symmetry here is the repeating half-whole step formula. And yes, the 3rd and b7th degrees make it a V7 chord scale, but like Phrygian Major there’s more to it than just that.
The three styles you’ll explore symmetrical diminished in is funk, jazz and the blues with the latter being a very cool way to inject some new life into your 12 bar improvisations.