Really cool stuff..
I interpreted this as
How it feels to take care of someone (a child in this case), and how no 2 people are the same. and how it feels after they leave the nest and all you are left with is the memories
All you can do is pretend that they are here
The music turning off when she grew up and "left the nest" (from how i interpreted it). It was eerie
How you can still feed and listen to the cheer voice even if she isnt there
Like you are trying to remember how it felt
Its always fun to try out games where it is left up to the player how they interpreted it
Good luck to you for the jam! :)