课堂教学中，由于学生的知识结构、兴趣爱好、性格特点的差异，导致了他们在学习过程中的表现有所不同。因而，课堂上的偶发事件也往往是难免的，笔者通过多年的音乐教学实践，现将课堂偶发事件的几种类型总结如下：外干扰型课堂教学不是封闭的，它与外界有着千丝万缕的联系。 Classroom teaching, due to the students' knowledge structure, hobbies, differences in personality traits, led to their performance in the learning process is different. Therefore, the incident in the classroom is often inevitable, the author through many years of music teaching practice, the classroom is now summarized in several types of incident are as follows: External interference type of classroom teaching is not closed, it is inextricably linked with the outside world Contact.