The conversion of music scores in paper form into the digital ones is the necessary accessonly by which could have information been exchanged between the human music activities andthe computer music processing. Optical music recognition (OMR) is the process of analyzing thescanned image of a music score, and recognizing the music objects in the score, finally achievinga versatile machine-readable format. It is the OMR that breaks through the bottleneck of thepurely handcraft activates in the tradi...