Ravel/Peter Phillips, “Miroirs: No.5, La Vallée des Cloches” (1904-1906). MIDI’s non-electronic predecessor was the piano roll, a punch card-like storage medium that was used to direct “player” pianos in the late 19th- and early 20th-centuries. Piano rolls were continuous (looped) rolls of paper with perforated holes whose vertical and horizontal locations on the sheet represented, Continue reading