Some very silly songs can have an almost melancholy feeling when you put it in a different perspective.
Many Muslims may not seek to kill the infidel, but they don't want to condemn those carrying out the holy book command.
If you observe, all classic love songs have a tinge of melancholy that comes naturally with the composition.
No moral code or ethical principle, no piece of scripture or holy teaching, can be summoned to defend what we have allowed our country to become.
Oftentimes, especially in the context of an acoustic song, I'm motivated to write by some amount of melancholy.