Could I ask you to stop manipulating my user name when quoting me?

Regarding the effects, the software can certainly improve the styles also by routing the effects differently as you say, which can indeed make the styles sound considerably better; however, this midi system can use what's inside the PSR in terms of samples and effects and nothing else. The voices played live cannot be changed at all beyond what you can do yourself by editing them. Some posts here suggested that an old PSR arranger can be improved to an SX900 or Genos, that's irrational.