Peter Gahn
Bewegen Sie die Störung
Toy Piano
(2008)
4 min
Edition Juliane Klein
performances
- world premiere: Bernd Wiesemann, Tonhalle Düsseldorf, 2009
programme note
This piece derives of the idea of a little diamond. Not a perfect diamond
but one with a lot of colour effects. Crystallographic disorders, e.g. point,
line, planar and bulk defects can occur inside regularly ordered
crystallographic structures and are a reason for the colour and colour effects.
Elastic and plastic distortion is a reason for delocalization of the regularly
ordered elements of a metallic bond. These metallic bonds - in German called
metallic “fences” - and the elastic distortions are the physical reason of
the vibration of the metal bars of the Toy Piano, its sound. The plastic
distortions of the slightly imperfect metal bars - looking like a fence in
their regular order - make the unique sound of each single pitch and special
beauty of this instrument.
(Peter Gahn)