Smith Corona Arduino, The Typewriter Symphony, Leroy Anderson, 1950. (Take 2)

(for a better performance at the proper tempo, watch this video: This is a “performance“ of Leroy Anderson's 1950 symphonic arrangement, with the typewriter percussion instrument played by a combination 1960s Smith Corona electric typewriter, custom PCB, Arduino, and a Macintosh computer. Idea, hardware and software design by Chris Gregg, Tufts University Computer Science Department.