I had to uninstall and install again
I never had this problem until today... The ad stuck to the bottom of the screen made it impossible to play a full song. If this does not get resolved fast for free... I will delete tiny piano permanently. I prefer the ads as pop ups occasionally rather than all the time interfering with my playing piano. You deserve no stars as long as this keeps up.
cooking Jedi Knight about
Tiny Piano - Free Songs to Play and Learn!