Tested now, I've seen a "bug", nothing major.
After the game start with Alucard, if you go with Alucard
down to the new part with the save point and go back, the music of the first area start to sound,
later going right you enter in the castle and the music stop, because usually there's no music
right now, it's programmed to start after enter in the castle and go walking meanwhile the map start to have light.