1. World: The songs sung by Jia Lei are soft, soothing and sweet, which budgerigars especially like to listen to. Budgerigars will relax, immerse themselves in wonderful music and jump with it.

2. Uneasy: This song is accompanied by sheng, flute, violin, dulcimer and other musical instruments, and takes China traditional opera gongs and drums as lyrics, which combines various timbres such as sheng and Lao Sheng. It changes endlessly at a very fast pace, exaggerating and deforming, and budgerigars will jump with the rhythm after hearing it.