An On-line Algorithm for Music-to-Score Alignment of Guzheng Performance

There are many obstacles preventing new learners of the Guzheng from getting faster improvements. For example, the need to flip the music sheet with one hand interrupts the consistency of the performance. To overcome these difficulties, an on-line algorithm for music-to-score alignment is proposed in this paper, whose function is to detect and trace the progress of the music signal recorded by a microphone. The use of Dynamic Time Warping (DTW) technique helps to align the standard music and the recording. Therefore, it is possible to show the progress on the screen in the real time and flip the page automatically when it is required. Furthermore, the errors of the player’s performance can also be detected with further improvements of the algorithm.