Complex sentence: Bill Lamb of About.com noted that the song features "a fierce percussive breakdown" after the first bridge, and that a "multi-layered vocal mix" is featured in the final bridge, before the song fades away.
Split into simpler sentences: Bill Lamb of About.com noted that the song "slides into a fierce percussive breakdown" after the first bridge. He also noted that the final bridge features a "multi-layered vocal mix" before the song fades away.