In order for a child to develop normal speech, he must necessarily hear it in the environment. In general, babies, as a rule, by about 5-6 months, begin to repeat the sounds of adults.
But the little heroine from this video is clearly ahead of her peers. When mom sings a song, she tries to sing along with her.
How good that the camera was at hand at that moment. These are simply unique shots that will become a real value in a family album. You smile involuntarily when you see such a cute scene.