Following their Creative Sources album Wind Makes Weather, alto saxophonists Tim O'Dwyer and Georg Wissel, both employing preparations on their instruments, improvise a confluence of sonic rivers evoking, exploring and reflecting waterways from around the world, captured in concert at the cinema hall of the cultural center Alte Feuerwache, in Cologne.

Sharing common ground in improvisational language and extended techniques but approaching these materials in diverse and disparate ways, alto saxophonists Tim O'Dwyer and Georg Wissel, both using preparations on their sax and distinguished in separate stereo channels, present a singular concert of reed interactions live at the Peter Kowald Ort in Wuppertal, Germany