Patent ID: 7631094

Claim:
A music data processing apparatus connecting to an external device via a public communications line, comprising: a receiver that receives a series of music data each containing first time information from said external device via the public communications line; a judging device that judges whether each of said received music data is received first from the external device or not; a controlling device that rectifies said first time information by a predetermined value and sets the rectified first time information as second time information for the music data processing apparatus when said judging device judges said received music data is the first received data and does not set the first time information as the second time information when said judging device judges said received music data is not the first received data; a memory that temporarily stores said received music data; a processor that counts up the second time information periodically and processes the stored music data in accordance with said counted up second time information and the first time information contained in the music data to be processed.