The Austrian composer Peter Ablinger transferred the frequency spectrom of the childs voice to his computer controlled mechanical piano.
Peter Ablinger: I break down this phonography, meaning a recording of something the voice, in this case -, in individual pixels, one can say. And if I have the possibility of a rendering in a fairly high resolution (and that I only get with a mechanical piano), then I in fact restore some kind of continuity. Therefore, with a little practice, or help or subtitling, we actually can hear a human voice in a piano sound.
source: Speaking Piano - 3sat
DEUS CANTANDO (God, singing) (02:01)
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