All names of the presets on Live Sets Page 11 end with two characters, being the initials of the sound programmers who created the Live Set Sound.
I've figured out "JG" stands for "Jonas GrΓΆning" (his name is visible in a Yamaha demo clip), but does anyone know who are "SP" and "NS"?
SP = Behind the Synth...
NS = NAMM Interview...
Further reading: Introducing the Yamaha CP88 and CP73 Stage Pianos
Thank you very much, Bad Mister! π
So now we have the solution:
SP = Scott Plunkett
NS = Nicholas Semrad
JG = Jonas GrΓΆning
I think the Live Set Sounds they made in Page 11 sound great, they are very useful!