I love the sample option on my PA600 and I am not am eastern musician It give me the option to change the PA600 into a whole different arranger for example the Musikant.

As for styles I told that several times there are enought styles for the Korgs.

There are also third party styles you just need to look around. See http://www.d-o-o.de or free ones at http://home.planet.nl/~aeduin/downloadKorg.htm