What song is it whenever the moon is in the sky?

Yun Fei: "Whenever the moon hangs in the sky, the grassland becomes very quiet, the wind blows through the green waves, and my thoughts and I fall asleep. Whenever the moon shines in the yurt, only the clouds are quietly enjoying it, and grandma's cradle is shaking when she was a child. Tell the old story slowly. The moon on the grassland and grandma's eyes lit up the thoughts in my heart ... "