The part music plays

Music and learning/retaining knowledge have very strong ties.

The emotion invoked through the music makes all the difference. 

Sophia uses music to process and she first used it to deal with her medical trauma. She would sing in the car about the journey, what would be happening, and how she would be feeling. On return home she'd sing about it as well. 

As she grew older, she processed her feelings through playing the piano.

She uses music within learning and recalling knowledge as well. She wanders away from the original learning lyrics and replaces it with her own. I find this extremely useful. It's her version of retelling a story in her own words. She makes a song up using her knowledge.

One example comes to mind. One day I heard these beautiful lyrics wafting from the bathroom.... 

'The food travels to the stomach to do a dance and then down to the intestines to squeeze squeeze squeeze and ahhh'.

It's a no brainer what she was doing on the toilet towards the latter part of the song.

Beautiful to hear during dinner time.

I think I prefer Cocomelons version: 'When you've got a funny feeling way down low, stop what you're doing and go go go'. This was how I taught Kira to potty train.

Early years education is all about fun and bonding, helping them make sense of their world, teaching them life skills. Admittedly a lot of those skills are boring, like potty training or safety comes first. 

The trick is to embrace the silliness which can come from the serious side of the subject. Enjoy yourself and make learning memorable.