Last time GH left clues in the writeup it was to reveal late in the game that he'd left the detective out. I doubt he decide to reveal the godfather in one song when none of the others have fit that pattern. Besides I don't see a basis for the assumption you made that the limpid green line is the important one. What about "Stars can frighten"? This could imply that the town is pursuing "mafia stars" who have done well in previous games.