Firstly, I had a korg x50 & Korg Pa1
But while ago, I bought Pa3x and everything is alright
but when I load any .SET it is s normal but with my own favourite one there is something weird, when I press the real time sound select buttons its LED is turned on but do not open sound select window, and the weirder that the four buttons under them, each one is assigned to a SC
in quarter tone, fortunately I'm Arabic Musician so it make it easyer for me but I just want to know how, I have several Manuals but did not find anything Secondly, how can I delete old & unused styles, perf. and sounds not samples.
Thanks