My first work for electromagnetically prepared piano. All of the sounds are generated either by typical means, harmonics (reaching inside the piano), or by electromagnetically actuating the strings. There are no loudspeakers involved. The instrument is something I built during 2010–11 based on research here available here: ccrma.stanford.edu/~sbacker/empp/, though I have made some modifications to better suit my aims. Special thanks to Per Bloland [perbloland.com] who pointed me in the right direction.
More info on my website: gregorywbrown.com/music/composition/display_comp.php?comp_id=21