Toy Organ

An old Toy Organ I know you're never going to use and maybe even download unless you want to entertain your kids.
This is my first 'complete' game, by the way.

The keys are: (in case you're confused)

Z = Do
S = Do#
X = Re
D = Re#
C = Mi
V = Fa
G = Fa#
B = So/Sol
H = So/Sol#
N = La
J = La#
M = Ti
Q = High Do
2 = High Do#
W = High Re
3 = High Re#
E = High Mi
R = High Fa
#other