
Originally Posted by
Bishbike
When i first read the title of this thread, I instinctually thought of modes of the major scale. Dudelsack beat me to the punch.
Ionian and Phrygian are the first and third modes of a major scale. Superlocrian is the seventh mode of a melodic minor scale, also known as the diminished wholetone scale, the altered dominant scale, or the "Pomeroy Scale".
If memory serves me, Hypophrygian is similar in structure to Superlocrian, but contains the perfect 4th instead of the third. YOJIMBO could probably tell you more about Hypophrigian and it's uses.