Today we'll check out the Byzantine/Hijazkiar/double harmonic major scale. Phew! The scale of many names! Actually, most scales are referred to by several names. It depends on the country, tradition or style of music. For example, there's the Ionian or major scale, Lydian dominant or 4th mode of melodic minor, etc. The Byzantine scale, et al, has a very exotic sound, due to the flat 2nd degree, raised 3rd and raised 7th.