The set for Georg Buchner’s opera Leonce and Lena is a cubical volume, standing above the ground. Its mass is made out of 530 vertical metal strings carrying metal weights and hanging from a metal frame. Three spherical volumes are extracted by the cube, formulating the rooms where the opera is played. The structure moves vertically to create diverse environments and to function as musical instrument every time the weights gradually touch the ground. The installation attempts to be simultaneously garden-sky-musical instrument-jail-dome-forest–church-mass & void, with much uncertainty and abstraction.