A method for processing and playing music. The method includes providing a computing system, an input device, and a display. The method provides a selected music composition in a sequence of music notes. A user input is provided at a selected time as the selected music composition is animated on the display. The user input is processed by the computing system and output a sound. A timing accuracy of the user input is also being determined. The method can be adapted to any digital apparatus that provides a display, a sound output, a user input device, and a data processing device.