press all of the keys and try to fiddle with them. A=Low C B=Low C# C=Low D and so on...
Did you find the Easter egg? Hint: Try pushing Z or Space For 2 octaves push: A, C, E, F, H, J, L, M, O, Q, R, T, V, X, Y. It is still a work in progress. Thanks to all who taught me piano.