Dose any one knows the difference between eastern and western violin tuning, Where does this difference came from ?!
What styles of music are you talking about?
As far as I know, the Western musical system is originally derived from the Pythagorean analyses which are based on divisions of a stretched string and the naturally occurring harmonics that occur from certain divisions of a string. From these divisions, we find that there are 12 tones and then each of these tones can be doubled or divided in half to produce different octaves. So from A to the next octave of A, there are 12 "notes" such as C# or E. Going beyond this point, we have "A" again which is really just double the frequency of the original A.
The only eastern music I know a little is Hindu (and to a lessre extent Karnatic) classical music.