<p>The present invention gives an automatic musical performance in synchronization with a distribution image of a moving image distribution server while limiting the influence of a state of a communication path through the moving image distribution server. Disclosed is an automatic musical performance device provided with: a second musical performance data receiving unit (312) that receives musical performance data transmitted not through a moving image distribution server (40) from a server device (20) storing the musical performance data which is a group of musical performance information of an instrument terminal (10) and date and time information indicating the date and time when a musical performance indicated by the musical performance information is performed; a synchronization signal receiving unit (314) that receives a synchronization signal transmitted through a transmission path of a sound signal from the moving image distribution server (40); and a reproduction unit (316) that reproduces the musical performance information of the musical performance data received in synchronization with a distribution image at the distribution time of the synchronization signal with timing according to the time and date indicated by the date and time information of the musical performance data received by the second musical performance data receiving unit (312) and the date and time indicated by the synchronization signal received by the synchronization signal receiving unit (314).</p>
