Abstract: A method, and corresponding computer system, for mapping user positional data to output data based on user selection and customization input. The method includes displaying a number of mapping routine identifiers to a user through a user interface. User selection input is received indicating a user selection of one of the mapping routine identifiers and a mapping routine corresponding to the selected identifier is retrieved and executed. User position data is received (e.g., MIDI data from a MIDI hardware controller) and the user position data is processed with the selected mapping routine to map the user position data to output data. The output data is then transmitted via an interface such as a MIDI interface to an output device to create an output (such as a synthesizer connected to speakers).