Don't worry Blondie576. Noone will think any less of you. lol
Have you figured out those black and white thingies yet? They are called KEYS.
Let me spell that for you: K - E - Y - S
Again, in case you want to write that down: K - E - Y - S
Sorry, I always get a bit carried away when it comes to the blonde thing. lol
I have a Yamaha digital piano too (a Clavinova) and this is copied straight from the manual:
Thank you for buying the Yama...
Damper (Right) Pedal
The damper pedal functions in the same way as a
damper pedal on an acoustic piano. When the damper
pedal is pressed, notes sustain longer. Releasing the pedal
immediately stops (damps) any sustained notes.
Sostenuto (Center) Pedal
If you play a note or chord on the keyboard and press the
sostenuto pedal while the note(s) are held, those notes
will sustain as long as you hold the pedal (as if the
damper pedal had been pressed) but all subsequently
played notes will not be sustained. This makes it possible
to sustain a chord, for example, while other notes are