A first control may be for setting a patch including one or more types of effects to be provided by circuitry to an inputted music signal, the patch associated with multiple candidate keywords to be displayed by a display device. A second control may be for assigning a patch name including a candidate keyword from the multiple candidate keywords to the patch. A storage device may be for storing the patch name and the patch. The one or more types of effects may be provided to the inputted music signal based on the patch stored in the storage device.