Provided are a system, method, and program for grouping backup objects stored in backup storage. A semiconductor integrated circuit includes: a digital amplifier, a driver; and a charge pump unit which is supplied with a positive operating voltage and generates a positive power supply voltage and a negative power supply voltage. In another aspect, a method may include providing at least a portion of a guitar having a surface, and applying a decoration over the surface by spraying radiation-sensitive ink compositions over the surface with one or more ink-jet spray nozzles and exposing the radiation-sensitive ink compositions to radiation. Upon the reception of the message or voice calling from another member, the terminal device 12 instructs the aroma emitting adapter 13 to emit the aroma and the aroma emitting adapter 13 thus emits aroma by releasing the aroma liquid contained in the aroma cartridge 14.