Palle Dahlstedt - Libration Perturbed - 16ch keyboard live electronics at ZKM Kubus

A raw documentation of Palle Dahlstedt's premiere performance of the 16ch live electronics piece/instrument Libration Perturbed, composed for the 47-speaker sound system in the ZKM Kubus, Karlsruhe. The audience is placed inside a giant harp of 64 virtual strings, each controlled in detail from the keyboard. All strings are connected to each other, and in spite of this strong internal feedback the player has complete control over string volume and timbre. All strings are connected to the vibrations in the physical keyboard, which serves as a acoustic-material interface to the virtual strings. So, all vibrations come from the players physical interactions with the extended keyboard object. This performance was part of a keynote lecture/performance at the ISACS17 conferene on Art, Sound & Science