On Friday, January 27, 2017, Associate Professor of Music Paula Matthusen and Visiting Scholar in Music Terri Hron performed Hidden Volumes, “an exploration and remembrance of space through magnetic, transferred traces” in Olin Library. “Looping backwards and forwards, distorting time,” they improvised on a series of recordings originally made in a dark Roman aqueduct which had been transferred onto reel-to-reel tape (the loops of magnetic traces). The performers stationed themselves in the central book stacks on the third floor, but the music could be heard throughout many floors of the library. The audience explored the soundscape by moving through the space — and enjoyed browsing the nearby books. Afterwards, Paula explained some of the technical aspects of the composition.