Hello:) I've just found nice layout of the piano Keys and Sheet Music on Pianote YT Channel. As I know they use Chordie app to show piano keys and some DAW software to upload MIDI. I don't know how they show Sheet Music. Any Ideas? Other intersting thing is that app is waiting for You till You press next note.... Maybe in the future SeeMusic could open XML file and show also Sheet Music? Thanks, Darek.