Hi.
After changing anything in your settings
you must store the changes in a panel memory
eg press and hold set then press the panel memory number you want to save to.
Saving to SD, Current Panel saves all button
settings you see before you.
Panel memory All saves all banks or you can save just Bank A.
Music Stylist , Find the music style you want
press exit twice, you now have that style on your current panel.
Now press Sound Arranger to on ,press set,
You can now change the sounds for each part.
But dont forget to save to a Panel memory,
then save to a new song on SD
Hope this helps took me a while but its worth it
Cheers Barry