Thank you for asking this question as i to have herd it and felt the same.... The onlything i can think of,,, and this is a long shot... Is that the music styles change dramatically through out the song. It goes through heavey, soft, ect. Giving refference to say Bo Rhap or the many stlyes queen had played with. I cant believe no one has answerd this yet. This is a very good question and i hope to hear some answers also.