I think they have to mix the free version and this pro version

- I think it would be more useful app if:
I can use kinetic scroll to move the key range.
I can move the key range of two keyboards indefendently.
I can adjust the keyboard size by a key(its possible in free version but not in pro version).

Im not satisfied after used this app.

Dinir Nertan about Virtuoso Piano Pro Classic, v1.0