During the months of March and April, Espai 13's 'Silenci Explicit' series features Tom Kotik, Czech-born and New York-based artist. Kotik's works explicitly suggest silence by combining the idea of "absence" with a physical "presence" of silence. For example, Kotik's exhibition includes Rational Impulse (2004) is an interactive sound sculpture formed of two sound-proof boxes that have been designed for rock-music to be played at top volume without more than a slight murmur being heard outside. When the viewer opens the boxes, a deafening blast of music from Kotik's own band, 'The Mighty High', fills the space.