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.