A centrepiece of last year's Elect The Dead album, Sky Is Over finds System of A Down's Serj Tankian retaining the genre-dodging approach of his band.
With a credible impression of a Bach toccata propelling the song into a frenetic, middle section Tankian's music may seem slightly absurd but carries undeniable power, crushing all in its wake.
Like a squashed opera, it's all over in three minutes, and Tankian makes his point forcefully. "Are you at war with land and all of its creatures?" he snarls. If you are, better run for cover after hearing this.