Songs like Strength of the World (Track 9) and M.I.A (Track 11) introduce a new sound (although already suggested in songs such as And All Things Must End) to Avenged's songs, with clean intros and outros and heavy riffs and bring up the subject if classic music in Metal, as seen in songs such as Metallica's Master of Puppets" (first solo), with Strength of the World featuring an orchestr