Changes

The last three songs on ''With Teeth'' seem to describe the protagonist's views of the world and the way things are going in it, i.e., the way he would like things to be going. On In this track, he expresses how what he believed, along with that which he believed in, is changing, shooting off in radical directions. He speaks as if it was destined to be this way, as if he saw it coming all along. This song, along with "[[Beside You In Time (song)|Beside You In Time]]" and "[[Right Where It Belongs]]" can almost be seen as a prequel to ''[[Year Zero]],'' as they speak about corruption in man's heart, and the world changing, revealing something not before seen ("The Line Begins To Blur" definitely seems to lead up to the Resistance Theory, and [[Trent Reznor]]'s struggle coping with a world that has completely devolved around him, as the chorus says, "As far as I have gone/I knew what side I'm on/But now I'm not so sure/The line begins to blur… ").

This is the original album version.Dave Grohl's live drums and loud, distorted bass begin the song, its rhythmic stomp augmented by distortion loops that give the effect that the listener's speakers are crackling from the volume. Reznor's vocals are elongated yells through the verses, which contrast with the melodic, guitar-driven chorus. Simple in its structure, the song features a second verse and chorus before moving into a coda driven by a melodic lead guitar line and Reznor's wordless vocal accompaniment. The layering and vocals during this last section are reminiscent of ''[[The Fragile (halo)|The Fragile]]''. Its final cymbal hit crossfades with the drone of "[[Beside You In Time (song)|Beside You In Time]]."

This live version can be found on the ''Beside You In Time'' DVD. It remains very faithful to the original sound and structure.

"The Line Begins To Blur" has been played live since the first leg of the [[Live: With Teeth]] tour in 2005. When played live, the The chorus is lyrics are often changed from "I knew what side I'm on" to "To know what side I'm on." This is seen on ''Beside You In Time.''