A generous, non-delicate uttering, even audible in the great distance of the urban environment; present and very centered with very little echo disturbances from the vacant site.
From high up the volume drags to the ground and fades into
the soil; unpleasantly rude like a ship’s horn right above
Suddenly a curious rattling sound is emitted which changes
to a distinct musical note, reminding of a honking truck; followed by a flogging, like after a hard strike, rapidly fading tune with
a metallic character. It comes over and over again. Very similar
to the swing of a church bell with strikes that appear in very quick but irregular successions; so a new one begins while
the preceding one still fades away.
The tension of the sound is broken by seconds or even minutes
of relative quiet. Almost silence—but only almost, never entirely:
still the sound keeps thundering in fragmented intervals,
breaking the quiet in two.
Vibrations accompanied by a booming low frequency during
the discharge. Again short, sharp bursts of motion occur: shrill, particularly obnoxious. The silo cries, it’s screeching and quaking, it’s dynamic. Now, it’s so loud that it could ruin itself due to
the vibrations, even causing its collapse.
Silo Music • text composition • concert 28' 22" • musicians: Daniel Steffen (electric piano), Beat Unternährer (trombone)
Honking eggs Kunstraum Teiggi, Kriens, CH
Silo Music is the overall term of an acoustic phenomena which might occur during the discharge of a silo. These frequencies can cause heavy damages in the silo structure and its surroundings and challenge scientists worldwide. There are hardly any recordings of silo music probably because “the noise problem” is deemed to be solved rather than to be heard.
My text Silo Music is the notation of these unforeseeable sounds and is composed with the influence of the acoustic descriptions written by scientists. The notation was the starting point for the two Swiss musicians to sound the text within a free interpretation.