While the song is about an electric chair, I think it is also about Macbeth. Macbeth got the crown, but since he wasn't actually descended from Duncan, in a way, the crown wasn't real, sort of like the "electric crown" of this song isn't really a crown either. The song is also about a man who dies for crimes he committed, like Macbeth. Macbeth had so much going for him before he decided to kill Duncan so he wasted his life "the life that you have wasted." Also, some of the song is written in 1st person while some of it isn't, so the song could be from the point of view as an audience member going to see Macbeth, "He comes to see the tragedy."
While the song is about an electric chair, I think it is also about Macbeth. Macbeth got the crown, but since he wasn't actually descended from Duncan, in a way, the crown wasn't real, sort of like the "electric crown" of this song isn't really a crown either. The song is also about a man who dies for crimes he committed, like Macbeth. Macbeth had so much going for him before he decided to kill Duncan so he wasted his life "the life that you have wasted." Also, some of the song is written in 1st person while some of it isn't, so the song could be from the point of view as an audience member going to see Macbeth, "He comes to see the tragedy."