I don't think that 'Sympathy for the Devil' would give Doug a good power or represent a major weakness. There are many more songs out there that would be more likely to have an effect to turn Doug evil. There is not much in the lyrics that could easily interpreted into some likely effect, good or bad.
The most prominent theme is the part about guessing his name. (That might have some effect in a world where true names hold power.) Unless Doug's subconsciousness latches onto the title, my guess would be a dud. If the Title works it might even be a useful song in places like the EVA step (geofront=inferno), among the archetypes of a gnostic Utena-step or just anywhere, where demons and devils are not necessarily the bad guys.
I like the idea of taking the 'Time is on my side' phrase literally. Sounds downright discworldian; come to think of it, Pratchett might even have used a joke like this in 'Thief of Time'.
The most prominent theme is the part about guessing his name. (That might have some effect in a world where true names hold power.) Unless Doug's subconsciousness latches onto the title, my guess would be a dud. If the Title works it might even be a useful song in places like the EVA step (geofront=inferno), among the archetypes of a gnostic Utena-step or just anywhere, where demons and devils are not necessarily the bad guys.
I like the idea of taking the 'Time is on my side' phrase literally. Sounds downright discworldian; come to think of it, Pratchett might even have used a joke like this in 'Thief of Time'.