The list of digital technologies that have remained in use for a decade or more is a short one. MIDI (Musical Instrument Digital Interface), the universal standard for communication between electronic instruments — which debuted at NAMM in 1983 — has gone unchanged for 30 years. Introduced to the public the same year Microsoft released Windows 1.0, MIDI belongs to a Paleolithic era of computer interface design. Nevertheless, it’s still used in every major recording studio, by almost every electronic musician working today, and aspects of its design have directly influenced the evolution of several musical genres.