Berlin recordings from the lowercase chamber improvising string quartet of New Zealand violinist Sarah Claman, Portuguese violist Ernesto Rodrigues and cellist son based in Berlin, Guilherme Rodrigues, with Swiss sound artist Caroline Cecilia Tallone on electroacoustic hurdy gurdy & amplified objects, exploring three shadow aspects of "Umbra", "Penumbra" and "Antumbra".

After a 4-week residency in 2018 at The Burlington in Chicago, the quartet of Paul Giallorenzo (keys & electronics), Charlie Kirchen (bass), Ryan Packard (drums, electronics) and Ben LaMar Gay (cornet & electronics) workshopped their exploratory approach to free electric improv for 6 months before recording this mesmerizing version live at Chicago's Hungry Brain.