Music teaching system and method

The invention discloses a music teaching system. A music analysis unit detects whether music score reference data corresponding to a music piece are stored in a local music score reference database; if yes, the music analysis unit comparatively analyzes test data according to pre-stored music score reference data and outputs an analysis result through a result output unit; if not, the music analysis unit outputs the test data to a background service terminal through a wireless or wired network, and the background service terminal acquires reference data corresponding to the test data from a network music score reference database, comparatively analyzes the test data through the music score reference data, outputs an analysis result to a mobile terminal, outputs the music score reference data to the mobile terminal and updates the local music score reference database of the mobile terminal.