Lately I've just been goofin' round with synth sounds on my korg x50. There are infinite possibilities. These videos are just goofin' round with certain sounds that I find somewhat interesting. I try to pick some voices that the Arpeggiator or Audition buttons work on. So far, there doesn't seem to be that many. Some freaky voices make some cool sounds. Better just to listen, not really anything to look at.