found: Work cat: McPherson, A. Secrets of Antikythera, 2013:container (magnetic resonator organ) insert (The magnetic resonator piano (MRP) is an electronically-augmented acoustic grand piano using electromagnets to extend the expressive capabilities of the traditional piano ... The MRP places 88 electromagnets inside the piano (one for each note), with the magnets suspended a short distance above the strings. Running a time-varying electrical current through the magnet causes the string to begin vibrating without ever having been struck by the hammer. By varying the waveforms sent to the magnets, a wide variety of musical effects are possible ... all produced acoustically by the piano strings without any external speakers or amplification ... In 2001, six composers and three pianists in the Philadelphia area participated in a project to write and perform new music for the magnetic resonator piano)
