Getting back to "Trad" a moment here, if we may;

"THE WIND THAT SHAKES THE BARLEY"

Getting his "True Love" shot dead in the midst of their last fond embrace can certainly get a man's dander up, don't ye know. "..'twas blood for blood without remorse I took out o'er them freely..."

Strangely enough, I don't see a lot of this emotion being expressed in the music of the American Civil War, where Lord knows there was more than enough furious, enraged ferocity to go around for four years or so. Residuals of that toxic flood may still be encountered in some places to this day. Why more songs were not written in the vein of "Good Ol' Rebel" formerly mentioned, I can hardly speculate. Perhaps they considered themselves "above" that sort of thing back then.