要全面了解西方音乐体裁的发展流变动因就需要从更多与音乐相交织的人文社会学科角度来分析音乐体裁的存在意义与产生、发展的必然因素。本文从因革融体、因时变体、因情立体、因趣择体四方面入手,以交叉学科为切入点,从多维度、多层次来详细探究影响西方音乐体裁发展、流变的动因。 To fully understand the changing causes of the development of the genres of Western music, we need to analyze the meaning of the existence of musical genres and the inevitable factors of their emergence and development from the perspective of more humanities and social sciences that are intertwined with music. This article starts from the interdisciplinary point of view because of the changes of the body of fusion, the change of time, the establishment of the body of interest and the body of interest, and explores in detail the factors influencing the development and evolution of the style of the western music from multiple dimensions and levels. .