Here are two nice renditions of the song 'Apache' performed on two distinctly different yet both impressive sounding Keyboards.
Unfortunately I wasn't able to find a Korg PA3X rendition of this song available to make it a 3-way comparison.

Apache Performed by Solitaire on a Yamaha Tyros 4:




Apache & Riders in the Sky Performed by J. Hakopuro on a Ketron Audya: