Abstract: [Solving Means] A master reproduction apparatus is a master reproduction apparatus capable of executing synchronous reproduction of audio data together with one or more slave reproduction apparatuses. The master reproduction apparatus includes a plurality of light emitting elements, a generation unit, a transmission unit, and a light emission control unit. The generation unit is configured to generate illumination information, in which light emission modes are associated with the plurality of light emitting elements, on the basis of analysis data obtained by analyzing audio data. The transmission unit is configured to transmit the generated illumination information to the one or more slave reproduction apparatuses. The light emission control unit is configured to cause the plurality of light emitting elements to emit light in the light emission modes based on the illumination information.

Abstract: There is provided an information processing apparatus including a detection unit configured to detect a usage state of a sound output unit, and a signal processing unit configured to tune sound signals to be outputted to the sound output unit, based on the usage state of the sound output unit.