Francisco López (Madrid, 1964), who presented this installation as part of Sónar 2003, is internationally renown as one of the main exponents of sound art and experimental music. Based on his recordings of natural environments, which he then meticulously processes and edits in his studio, López recreates parallel worlds and virtual realities that invite listeners to abandon themselves to a deep and enveloping listening experience.

Over the last twenty years Francisco López has developed an astonishing sonic universe, absolutely personal and iconoclastic, based on a profound listening of the world. Destroying boundaries between industrial sounds and wilderness sound environments, shifting with passion from the limits of perception to the most dreadful abyss of sonic power, proposing a blind, profound and transcendental listening, freed from the imperatives of knowledge and open to sensory and spiritual expansion. One of the leading figures of the international experimental underground, he has realized concerts and sound installations all over Western and Eastern Europe, North, Central and South America, Japan and Australia, and his works have been released by more than one hundred record companies throughout the world.

"Two blank spirits" is a double installation that generates two phenomenologically antithetic, yet spiritually close, immersive worlds. Both of them require time and commitment, they are open in their potential and meaning, they convey synaesthetic, multi-layered environments under a semblance of simplicity, they transform the normal perception of time and space, they forcefully refuse procedural explanations and the claim of communication. Both of them offer freedom in return of passion, and viceversa. One of the parts, "untitled #91", which is one hour long, moves around the limits of aural and visual perception through a hyper-slow universe projected on a large scale. It has been created in collaboration with film-maker Jorge Simonet. The other part, " sin título " ("untitled"), which is half an hour long, digs in a manifold sonic universe of considerable intensity and takes place in complete darkness in a locked room with a surround sound projection system.