Oriental Music usually means Music from the East, so Middle-East. But that is only the word. In reality, it means the sound of the drums accompanied by the musical instrument using a lot of rhythm and solo's during which one can Belly Dance!! So it is a combination of nice drums and sounds.
It is so at first Arabic, but also Turkish and a lot of Balkan songs also use the oriental styles and sounds. However, the Arabic Scale is not a necessity for using the sounds and styles such as myself. I dont use the scales myself.

Ilija