A mask includes: a substrate that includes a central area and a peripheral area disposed around the central area; and lenses disposed in rows and columns, in the central area and the peripheral area. A driving voltage derived from a primary power source is provided to an SPD load by backbone wiring which carries a low AC or DC voltage derived from the primary power source, and a conversion stage which converts the low voltage to an AC driving voltage which is then supplied to the SPD load. A cooling station is disposed adjacent the cooling device and is configured to provide a cooling fluid to an interior of both the first and second pluralities of molded articles inside the respective first and second rows of cooling tubes. When the current position is an end point, a CPU sets the reflected light as a pixel value, and the fusion image data generating process ends for the single pixel configuring a frame. A pair of resilient sections is provided between the suspending arms and the fixtures. Specifically, the present invention allows the user to select a song from a plurality of songs that have been formatted to allow playback of individual melody andor harmony or the harmony’s sub-components.