Musical genre is a widely used term in musical discourse, but it remains a concept that has not yet been fully explored. People usually do not make any distinction between it and musical classifications, and this even appears in some scholarly writing. Hence the concept of musical genre needs to be reexamined. Although not many definitions can be found, the present writer has interpreted some of them and conducted a review of relevant texts he has published in the past. In addition, the writer dissected the particular connections between musical genre and musical classification, especially pointing out the differences between the two, so that the concept of musical genre can finally escape its difficult position in logical thought. When identifying a musical genre, one raises an argument on the establishment and classification of musical genre, based on a few examples of Western musical genres, in order to avoid conceptual confusion. In Western musical culture, the names of musical genres, as well as their connections with certain places in their development, can offer clarification. Moreover, the connections between musical genre on the one hand and thought on creativity, culture, esthetics, economics, society, and politics on the other can provide musical researchers attitudes and ways of thinking with regard to musical genre.