In his performance work Gero Koenig investigates navigation possibilities of complex microtonal sounds. After five years of continual development he has finished the prototype of the instrument Chordeograph. Using “sliders” made of metal, wood and glass up to 37 strings are stimulated simultaneously. Different positions of sliders, respectively directions, angles and speeds determine the tonal possibilities which go beyond the sound spectrum of present string instruments and their applications: from melodic tonal movements, pulsating beats through to sounds of orchestral dimensions.

Gero Koenig, born 1972, studied composition and piano at the Robert-Schumann music college, Düsseldorf, sitar and santur at the Sivananda Ramesh music school in Rishikesh, India, private lessons in singing and voice training, Bonn. Since 1999 freelancing composer and performer.Since 2001 Project Chordeograph, conceptualization and development of new techniques for generating sounds based on strings, development of the instrument Chordeograph 1. 2008 - 2013 development and construction of the instrument Chordeograph 2 in cooperation with engineers of different fields.
Since 2002 composition and concertperformances with sitespecific visual dramaturgy as in Klangraum/passage, a concertante sound- and lightinstallation, Basilika St. Gereon, Raum Klang Licht, Christuskirche Köln; Piano+ 09, ZKM Karlsruhe; begegnungen, Metallisches Fest 07, Chemnitz; Safe and Sound, Belgrad; SKOP, Frankfurt a.M.; Unerhörte Musik, Berlin; Improvisationen 130XXL, Bremen

www.chordeograph.de

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