11:00–11:40 a.m. Villa Rustica (open-air site Alte Römervilla), Blankenheim
Percussion concert by percussion duo “Störsignal” (Vera Seedorf, David Timme)
Works by Iannis Xenakis, Erik Griswold and others.
11:40 a.m.–12:15 p.m. Soundwalk to the source of the Ahr with the percussion duo “Störsignal”