Well,first of all let's eliminate an option.
Let's say that you transfer all the midi data of your recording to Reaper.
Now Reaper needs "voices" from instruments to transform the midi to sound.Right?
Can it use the Yamaha voices? No.
Yamaha voices need a program to handle them.For example a Yamaha voice is this kind of file: grandpiano.vce.
Where is this program that can handle those files?
Only inside the Yamaha keyboard.
So as long as there is not Yamaha voices inside Reaper ,it needs a VST to transform the midi data to sound.
Windows Media Player for example has a very basic kind of VST to play the midi files.
So the only option to keep the psr s voices is to handle those recorded midi data ONLY directly on the keyboard.
It has a feature called Song Creator to change the recorded notes,add effects,change the sounds etc.
In this case the keyboard is a DAW with just one VST installed.The Yamaha voices that keyboard has.
Is it as easy to use as a job that could be done on a computer? No.
But there is still some programs that can handle the midi files of a Yamaha keyboard WITHOUT loosing the Yamaha voices.
https://psrtutorial.com/MB/mixMaster.html Here how we can record and handle our midi recording on the keyboard:
https://www.youtube.com/watch?v=BIj9YQYHysw
https://www.youtube.com/watch?v=J0TR9S4Th7Ahttps://www.youtube.com/watch?v=9ipIYnNd8nI&t=445s
So the recording below I have made it just by pushing the Rec button.All the sounds that you are hearing are recorded as midi data.So if i wish I can equalize,add effects,delete a wrong note etc just by using my keyboard and then convert the recording to an audio file again.
Recording something like this without a style on a DAW it would have taken me countless hours.
Not to mention that I would have to find out all the notes for every instrument should play.
(There are thousands of single notes in just one recording
)
I have just chosen this job to be done by the....style.
https://www.youtube.com/watch?v=n2ziAcYHE9YOr If I wish I can take the whole recording to a DAW and handle the changes there and use others,not Yamaha voices,add extra instruments etc.