Abstract: A system for transcribing musical notations onto paper as corresponding notes are played on a piano includes a housing disposable on the piano above the keyboard to produce electrical signals representing the piano keys which are depressed, and a typewriter adapted to type musical notations representing notes onto paper rolled onto a cylindrical, rotatable platen of the typewriter. Also included is a type key actuating device disposable on the typewriter above the type keys and responsive to the electrical signals for depressing type keys corresponding to the musical notes represented by the signals. The type key actuating device includes a plurality of solenoids, each coupled to a different one of the type keys for depressing the key when energized by one of the signals.