An heat pump drying machine has a normal dry mode for operating a compressor at a predetermined dry operation frequency and an energy saving dry mode for operating the compressor at an energy saving operation frequency that is lower than the dry operation frequency. The compound is 9-anthrcenylmethyl-1-piperazinecarboxylate, an isocyanate derivatizing agent. The information-processing device further includes guide grooves provided on one of the accommodating part and the removable unit and guide rails provided on the other one of the accommodating part and the removable unit. Further, the system provides information regarding the estimated wait time and the less busy time for the modes of contact. The set of individual keys includes at least one key corresponding to the encoding period CPi, and at least one key corresponding to the encoding period CPi+1. A mixed output is generated by applying the corresponding values from each of the plurality of audio attribute layers between the two points to a portion of the first audio file.