donny,
this is what I don't like as well on Yamaha PSR9000 vs Solton X1 keyboards. In Yamaha, you can change the sounds while playing a midi file, but not save your changes. You have to load the song up in the sequencer and then make your changes as edits. then you can save them. As you are probably aware of from owning an X1, all you have to do is make the changes while playing a song and then stop and press save/enter and it's done. I have spoken to Yamaha about this. I believe they need to make a change in the operating system if they can to allow the ability to change easily the sounds and then store them.
George Kaye
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George Kaye
Kaye's Music Scene (Closed after 51 years)
West Hills, California
(Retired 2021)