I hear songs when I'm writing and since "Trace of a Ghost" incorporated a few supernatural elements, particularly angels, I heard plenty. Here is a song list I compiled when writing this angelic tale and I'm including them here with links to You Tube videos. Hope you enjoy.
Angels Among Us, Alabama (Warning: This song may cause water to leak from your eyes.)
Calling All Angels, Train
She Talks to Angels, The Black Crowes
Angel, Sarah McLachlan
The Devil Went Down to Georgia, Charlie Daniels (Just substitute Mississippi)
Devil in Disguise, Elvis
Crossroads, Robert Johnson