The City of the Ghosts (Songs of Devils ?)

Songs galore, songs of devils, runs alongside the route of the brain, if it were the purgatory would the judge got a heartache.
In this city nothing happens for casualty, there are several patterns, cause-effect seems to be the one. At this moment Detective Man is in charge of an investigation: Who sing by the devil ?
More than strange commision to Man, but there was not reason to say no, his boss denied this possibility beforehand. And when left him the folder with this case on his desk, just one page talks by itself about this case, beside it has one page. This page counted 66 words: the devil number, and it was a song.
Started to read the one song lyrics Detective Man:

Will the power of the light change your face
Will the power of the light change your name
Will the power of the light change your tale
But just me could be able to change your fate
...