Mood disorders are important factors affecting the performance stability of piano players. The purpose of this study is to explore the influence of psychological anxiety on the stability of competition performance.

Piano players with different mood disorders were selected as research objects. The Stanford Acute Stress Response Questionnaire (SASRQ) and a similar 3-minute Disorder Assessment Scale (3D-CAM) were used to assess the participants’ state of psychological anxiety. By collecting the data before and after the competition, BMDP statistical method was used to compare the performance stability of piano players under different mood disorder levels.

The results showed that before the competition, the piano players in the high mood disorder group exhibited higher levels of psychological anxiety (SASRQ score of 7.8 on average), while the low mood disorder group had relatively lower levels of psychological anxiety (SASRQ score of 3.2 on average). After the competition, the high mood disorder group had lower performance stability (mean score 6.5), while the low mood disorder group had relatively higher performance stability (mean score 8.9).

The results show that mood disorders have significant effects on the level of psychological anxiety and the stability of piano players in competition. Players with high levels of mood disorders may be more susceptible to psychological stress during competitions, which can affect the stability of their performance. Therefore, psychological support and intervention measures should be provided to piano players to help them overcome mood disorders and improve the quality of performance during competitions.