Emotional Expression and Playing Psychology in Accordion Playing under Complex Audio Background Environment

Accordion performance is an emotional art, and the generation of emotions is inseparable from human psychological activities. It has a great relationship with the performance of music and has a great impact on the performance of the performance. The performance of the accordion is a process of psychological perception, understanding, imagination, experience, and emotion. It not only shows the true creative intention and emotion of the "original work" but also integrates it into the individual characteristics of the individual. In the creation, the true artistic vitality is given to each note, thereby enriching the musical composition, thus showing its unique charm. Therefore, this paper proposes a study on the emotional expression and playing psychology of accordion playing. In the end, the performance of class A students was significantly better than that of class B students, while more students in class B scored within 50-60 points, more students in class A scored within 90-100 points, therefore, the contrast is large. The average score of class A students is 80.125, and the average score of class B students is 71.45. The highest score for A can be as high as 98, the lowest score is 58, and the lowest score in class B is 51. It can be seen that having a high performance psychological quality and the ability to express emotions can achieve a good effect on accordion performance.