y.And on the other side.Li Yusa waited in the conference room for a full two hours. Her afternoon tea had even gone cold.She wanted to see what Si Yechen was busy with, but she was afraid of disturbin...en to some of the instruments in the song, such as the vibration of a guitar string or the tremor of a piano key, to tell them apart. Also, you can listen to Xiaxia's breath and singing style. To be h...