A KTV player in communication with at least one song server is configured to upload a song list of a song database to the song server, obtain a song playback list from the song server, obtain corresponding music scores and pitch curves from the song server according to the song playback list, obtain corresponding songs according to the song playback list, display the songs in sequence on a display, and display the corresponding music scores and pitch curves on the display synchronously with the songs. The song playback list is sent by a mobile terminal in communication with the song server.