The present invention is an improved electro-optical device comprising a substrate-supported layer of electro-optical material disposed between upper and lower electrodes. A sacrificial material is deposited over the first insulator layer and within the via, the sacrificial material being deposited at a thickness so as to also form a second insulator layer. The apparatus includes a processor operable to apply a transformation to received digital image data to reduce ink coverage pixel values included in the digital image data by a predetermined amount; and an imaging device operable to image a printing plate using the transformed digital image data with the imaging device being in electrical communication with the processor. A controlling unit 10 extracts necessary material data from the material data storage device 31 on the basis of at least one of external information received by a receiving unit 20 and rule information stored in a restructuring rule database storage device 33 in accordance with the additional data to compose a new music piece from the extracted material data. For example, in dual channel devices, a local oscillator can be coupled to a pair of the mixers using transmission lines that do not have to be routed around the integrated circuit, to a different level of the printed circuit board or underneath one of the mixers.