An information processing method is realized by a computer system, and includes acquiring input data including image data representing an image including at least a hand of a user playing a musical instrument, first finger position data representing a position of each of a plurality of analysis points on the hand, and performance data representing a performance of the musical instrument, and processing the input data using a trained generative model, thereby generating second finger position data in which the position of each of the plurality of analysis points in the first finger position data is corrected in accordance with a position of the hand represented by the image data and the performance represented by the performance data.

An electronic device, which is an electronic musical instrument as an electronic device, includes: a rotating shaft inclined with respect to a perpendicular line of a panel; and a rotary knob that is attached to the rotating shaft and has a fingering marker portion provided opposite to an inclination direction of the rotating shaft.