Schedule conflicts, scheduling, personal reasons.

1. Schedule conflict: Ayunga has other important activities or performances scheduled on the same day or time period, resulting in her being unable to attend the Tianqiao Musical Festival.

2. Scheduling: Ayunga already had other performance contracts before participating in the Tianqiao Musical Festival, and the performance of these contracts made it impossible to participate in the festival.

3. Personal reasons: Due to personal reasons, such as physical discomfort, family matters, etc., Ayunga was unable to participate in the Tianqiao Musical Festival.