Due to the release of snes9x 1.41 tracer version, I have been able to create AR codes, that
allow access to the hidden songs.

The AR codes are

C0D2C14E - Music Test Increment.
C0D2EF4D - Music Test Decrement.

The game genie equivelents, incase you desire to use these on the real cartridge.

032A-8D0D
0223-87AD