Piece #1 talk with the NPC that bites you
Piece #2 solve the rideword questions answer 2nd 3rd and 4th then go to the hotel where the dead chicken and dead bird is, talk to the NPC man.
Piece #3 and #4 Go to a tombstone located centre where that´s ...... sign, click it. After you get a piano piece, click on it again to get another.
Piece #5 Head south search a tombstone with a ...... sign. Click it to get the last piece.
Piece #6 Go west house where thats a poet, you have to memorise the poem in red. Later on he will test on you and you need to type out part of the sentence (full stop and common included)
Total is 6 piano pieces
Note: Keyboard#3,#4/5 and #6 You need to follow the sequel in order to get the piece.
Afterwhich, go east part of the forest you will see dark stone stairs near the lake, go all the way to the top. Enter the tower go to 2nd floor and you will see a piano there. Click on the piano. After finish go all the way down, face the black wall, use your mouse cursor point at the black wall., you should able to see ...... sign. Click on it and unlock the secret!
C´est tout ce que j´ai trouvé 