Now I should get my bias out of the way now by stating that Sigur Ros is one of my favorite bands of all time. I discovered them at an age where my mind was grasping for sounds that evoked feelings of heaven (if such a thing truly exists) or that had a quality of beauty that could not be understood but can certainly be felt. When listening to their ep “Ba Ba Ti Ki Di Do, I went in with the ears of a long time fan and with “the art of noise” as my eyes. This soundtrack piece adds an interesting facet to the idea of reaching for new sounds that our ears may not yet be familiar with, as noted in “the Art of Noise”. To use the vocabulary provided by the six categories of noise, Sigur Ros manage to touch upon 3 of them. Aside from the various delicate, moody keys being plucked and the constant drone of what sounds like xylophones, one cannot allow the other noises to pass by. At one point during “Ba Ba” one can hear what sounds to be a disembodied voice of a human but the its pitched so high and integrated so quietly in the mix that one would hear it as another instrument. As the piece fades to the next movement, one can hear all these “voices” stand out on their own alongside these various twinkles of keys. In the second piece “Ti Ki” this progression of keys build and transpire to what eventually becomes more whispers and rustling from a disembodied voice. As the manifest states, these noises must not be watered down to mere imitations of noises that we have already been exposed to. Sigur Ros definitely combine recognizable keys and chime instruments with these various rustling, hissing, whirring, and winding noises in the background. Sigur Ros make it obvious that they seek to explore and introduce unique sound-scapes to recognizable and emotional worlds.
http://www.ubu.com/sound/sigur.html