For over half a century, Sven Åke Johansson and Rüdiger Carl have explored the boundaries of music together. Villa Hügel captures a rare moment: a concert with no audience, recorded in 2020 in the library of Villa Hügel during the 2 x Kippenberger exhibition. The few present could only experience it in-house via TV transmission. Carl on accordion, Johansson on percussion, cardboard, and crackle box -- an interplay of structure and openness, sound and silence. This release follows Johansson's exhibition Osram at JUBG in 2025. A document of two musicians, bound by time and sound, in a moment like no other.