The electroencephalogram (EEG) study of musical emotion perception is the study of emotional brain mechanism using music to evoke emotion and using EEG data analysis as the tool.

Main melody is the basis of music emotion automatic detection by computer,as it contains the most important information about emotion.

The possibility of the application of hermeneutics in music psychology research is clarified through defining basic music context structure in terms of music psychology phenomenon,such as music emotion,music forms and music ideas,as well as the analysis is on interpretation restore(li.

Music is the most effective form which expressing the people s intrinsic emotion, rhythm is the important form which expressing the music emotion.

According to the investigations of the declining of the south-east Shanxi Daoqing music and the explorations of the various causes that behind the ideas from both the folk music of the external environment and internal development,this article points out that the declining of the south-east Shanxi Daoqing music from two main aspects:the incomplete inherent function and the impact of modernization.

It s necessary to stimulate the students interest in study, develop their musical emotion, and enhance their sense of performance, so as to improve their comprehensive ability in music to meet the needs of the development of society.