Abstract: With the increasing of musical works and variety user retrieval needs,using content-based music retrieval methods,we proposed a music melody definition and expression style,and then completed the similarity calculation on the melody contour geometric similarity.Specifically we proposed a series of factors affecting the accuracy of retrieval algorithms,and determined the appropriate threshold through the experimental method,and implemented the final retrieval system both on stand-alone version and Web version.The experiment results indicate that the solution is correct,effective and can achieve higher retrieval accuracy.

Key words: Music retrieval,Melodic contour,Elastic matching,Linear alignment