A music data providing apparatus comprises: a storage device that stores music data in a musical performance data event format; a receiver that receives a request for providing music data and a setting parameter from a user via a network; a converter that, in accordance with the received request and setting parameter, reads the music data in a musical performance data event format from the storage device and converts the read music data into music data in an audio data format; and a transmitter that transmits the converted music data in an audio data format to the user. Music data in various data format can be provided.