Information processing device, information processing method, and non-transitory computer readable recording medium

An information processing method, comprising,

• by an information processing device:
• receiving an input of information indicating one or more times in a playback time of a musical piece;
• generating a file comprising information pertaining to a timbre control performed from each of the one or more times;
• and
• transmitting an audio signal of the musical piece and the information pertaining to the timbre control in the file to a device that outputs a synthetic sound of a playback sound of the musical piece and a playing sound of a musical instrument.

A non-transitory computer readable recording medium storing a program, the program causing a computer of an information processing device to:

• receive an input of information indicating one or more times in a playback time of a musical piece;
• generate a file comprising information pertaining to a timbre control performed from each of the one or more times;
• and
• transmit an audio signal of the musical piece and the information pertaining to the timbre control in the file to a device that outputs a synthetic sound of a playback sound of the musical piece and a playing sound of a musical instrument.