The importance of the Egyptian D scale
The Arabic name for this scale which can be traced back to Egypt is the Bayati scale, the Greeks used the name Dorian for the same scale as it was associated with one of the three tribes that the Greeks had broken into. Never the less it is of Egyptian origin as are most things.
Egyptian religion was and still is very much based on Cosmological symmetry and balance (Ma'at). It is no wonder why this scale was dominantly used given it is the only diatonic scale that is symmetrical.
The notes are d E F G A B C D
This turns out to be d-w-E-1/2-F-w-G-w-A-w-B-1/2-C-w-D
As you can see the formula is: whole step - half - whole - whole - whole - half - whole step
Perfect symmetry backwards and forwards from octave to octave
