The Spannungen Festival held in Heimbach takes its name (German for “voltages”) from its very peculiar venure, a beautiful Jugendstil hydro-electric power plant. June 18th will mark the opening of the 2023 edition, the first to be organized since the passing of its founder Lars Vogt, who was also a regular performer with such fellow instrumentalists as Julia Fischer, Christian Tetzlaff, Isabelle Faust or Kim Kashkashian.