Love em or hate em, Slipknot has always blended heavy guitar playing with screaming. And even though this is in "Duality", it is not so much... should I say... noticed. The song is a classic, no-dubt. There is talking in the middle, screaming for the chorus, and great guitar playing. Overall, Slipknot, who I dont care much for, has released a classic single in "Duality". I would recommend going and downloading the single somewhere else instead of buying the single, or just get "Vol. 3: The Subliminal Verses".
As for the other two songs, one is a b-side and the other is a live track. Both these songs are not worth the 12.99 they are charging you for the single, so dont even bother buying this. You could probably also download them online for a grand total of 3.00. Big spending! Even though the two other songs suck, "Duality" is a classic nontheless.