New Music By Karlheinz Essl

Excerpt of an aquatic soundscape for Jürgen Messensee's installation „Piscina di Venere” in the rotunda of the Essl Museum in Vienna/Klosterneuburg (Austria) in 2006. Info: http://www.essl.at/works/panta-rhei.html Water in its diverse aggregate states and forms of flowing is the basic acoustic material for this piece, which is permanently scanned, altered in its corporality and continuously recomposed through a random-based compositional algorithm. Here the form and energy distribution of a wave serve as the fundamental formal principle: the rising and falling of the sounds, the glissando movements and the spectral sound shifts are controlled by a time-variant wave model, the parameters of which are constantly changed by random operations. In this way, a process is set in motion that eludes any kind of external control and is carried out before the ears of the listeners like a natural phenomenon: "panta rhei" - everything flows.