A light emitting apparatus includes a substrate, an insulating layer and at least one light emitting device. The electrode structure includes a first electrode, a second electrode and a third electrode located between the first and second electrodes. In music piece reproduction, the individual event data of the music piece sequence data are sequentially read out, and a tone signal is generated in response to each readout of the performance event data. Fabrics may be treated with the hydrocarbons as part of a domestic laundering process.