Abstract: A data processing method performed by a processor that receives data signals from a plurality of devices that utilize different protocols from each other receives data signals, respectively, from each of the plurality of devices, and generates multitrack audio data, in which audio data of a plurality of channels is stored by storing a first data string of a digital audio signal, received from a first device of the plurality of devices that utilizes a first protocol, in a first channel of the plurality of channels, and storing a data string of a digital signal, related to the digital audio signal and received from a second device of the plurality of devices that utilizes a second protocol different from the first protocol, as a second data string of the digital audio signal in a second channel of the plurality of channels.

Abstract: A percussion instrument motion reproduction device includes a percussion instrument. The percussion instrument includes a vibration portion. The percussion instrument motion reproduction device includes a first driving portion. The first driving portion of the percussion instrument motion reproduction device is configured to visually displace the vibration portion in response to an electrical signal.

Abstract: A percussion instrument driving device includes an actuator and an actuator mount. The actuator includes an actuator surface configured to vibrate in response to an electrical signal to vibrate a vibration surface of a percussion instrument from outside of the percussion instrument. The actuator mount is disposed outside the percussion instrument having a vibration surface. The actuator mount is configured to mount the actuator to the percussion instrument from outside of the percussion instrument, with the actuator surface facing the vibration surface and spaced from the vibration surface.

Abstract: An actuator is used for a piano includes a bridge and strings. The actuator includes: a vibrating body; and an attachment portion configured to attach the vibrating body to the piano, the attachment portion being configured to be sandwiched between the bridge and at least one string, among the strings of the piano.

Abstract: A reproduction system includes an output apparatus that outputs multitrack data including a plurality of track-by-track audio data of sounds of (i) musical instruments, (ii) singing voices, or both (i) and (ii), the plurality of track-by-track audio data including audio data of at least an acoustic instrument, a vibrator that vibrates the acoustic instrument in accordance with the audio data of the acoustic instrument included in the plurality of track-by-track audio data included in the multitrack data, and a speaker that outputs the sounds of (i) the musical instruments, (ii) the singing voices, or both (i) and (ii) in accordance with the plurality of track-by-track audio data.

Abstract: A reproduction system includes an output apparatus that outputs multitrack data including a plurality of track-by-track audio data of sounds of (i) musical instruments, (ii) singing voices, or both (i) and (ii), the plurality of track-by-track audio data including audio data of at least an acoustic instrument, a vibrator that vibrates the acoustic instrument in accordance with the audio data of the acoustic instrument included in the plurality of track-by-track audio data included in the multitrack data, and a speaker that outputs the sounds of (i) the musical instruments, (ii) the singing voices, or both (i) and (ii) in accordance with the plurality of track-by-track audio data.

Abstract: A shopping system includes store terminals for registering purchase and sale of items, a store processor for collectively managing the store terminals, electronic shelf labels capable of setting classification, etc., of the items, an item information data base for storing the classification of the items and the electronic shelf labels from information from the electronic shelf labels in such a manner as to correspond to each other, and home terminals for executing edition from the information from the store terminal or the store processor by a predetermined logic. The home terminal in this system accumulates the item information from the store terminal as history, determines a mean purchase interval of individual items, and decides and notifies the items to be purchased to the shopper by purchase item determination process of a next shopping day and a next-of-next shopping day inputted by the shopper.