The symmetric scale.
Some people call it the double diminished scale – Messiaen called it mode 1 of Limited Transposition. Hindemith called it the Octatonic scale.
This master class shows how Phil’s use of the whole scalic form in Green and Purple is actually the up-side-down version which gives you a whole different set of harmony and chords.
Listen to Green and Purple from elsewhere on the site.
Watch Green & Purple from The Vortex from January 2019
Bass mel, gtr & sax tune
Bells gtr solo, flute, intro
Phil’s notes and score