Jun 26, 2017. The Musical Instrument Museum, also known as the MIM, is part of the. and a collection of mechanical, electrical, and electronic instruments. The name might not mean much to you, but it illuminates a long running connection between electronic music and the occult. West in the development of electronic instruments. Leon Theremin, inventor. 120 Years Of Electronic Music. 120 Years of Electronic Music* is a project that…