Harumichi Hotta

Electronic musical instrument having an external memory device

An external memory medium storing data corresponding to a desired automatically playing or tone color selecting function can be removably set, so as to expand various functions of an electronic musical instrument. An identification code is recorded in the medium, and thus the function of the medium can be automatically determined from the code. The instrument is automatically set to an operation mode corresponding to the function in accordance with the determined function so that the data stored in the medium can be utilized. The determined function may be displayed to the player.