On the (MM15) are there no piano options (not electric) but acoustic piano options for sound under Vita? Or are there any at all????? I have found guitar, even electric-guitar/strings/horns/ and others.....  but not acoustic piano, just electric. Did the company get rid of the piano sound, or is my version just messed up?????? Also, I do not have Revolta 2, and I see some people posting things about Revolta 2. I had the 12th version prior to purchasing this newer version (15) from BestBuy, and it had ACOUSTIC PIANO sounds under VITA and the original REVOLTA, but this has neither..... so???? HELP ME PLEASE!?!?!?!?!?!! THANKS MUCH :)