Chordeograph Augmented Reality

Chordeograph AR – Instrument and Graphic Scores as an Interactive Video Performance
From his research on sound and perception, Gero König has overcome the construction
of the piano and its static tonal system after five years of continuous development
work and has completed the electroacoustic instrument Chordeograph.

In his project “Chordeograph Augmented Reality”, he explores the extent to which
Augmented Reality can serve as a means to expand hearing. By incorporating
graphic video scores, he transforms the instrument into an interactive space.

Through mere movements of the arms and hands, it becomes possible to navigate
between different resonance options visualized in the score and to trigger
analog sound transformations without physical contact. The mechanical vibrations
of individual strings become both visible and audible—on the instrument itself
and within the score projected onto the planetarium dome.

During his residency as a fellow at the ZKM Karlsruhe, Gero König, supported by
ARTOXIN, developed this project into a demo version. In 2018, this version was
presented in a concert, as well as in workshops and an installation at the ZKM.

Now, a specially designed and adapted version is being created for the
Planetarium Bochum, which will be presented for the first time as part
of the festival.