“Mama, do you know the Dada song?”

To the tune of Twinkle Twinkle.

“Dada, Dada, Mama, Dad,
Dada, Mama, Dada, Mum.
Dada, Mama, Dada, Dad,
Mama, Dada, Dada, Mum.”

(or thereabouts… no two repetitions are exactly the same.)