Chap 25, "Decline"

The Parent Song based on Raag Bageshree is a dialogue between Paco and Ma-Pop after this chapter about them helping their son stop digging and realize he's in a hole of school and girl drama.  They bond while studying and digging up background on the parents about the origin of their name change, De Colores, as well as how they met through tutoring in the first place. 

Pop alludes to Henri Alain-Fournier's The Wanderer, an immature romance novel written by an author who died in WWI; the theme of the novel is that you lose whatever you most passionately desire if you actually achieve it, which describes the loss of Paco's possibility of him and Traci ever becoming like Sofia and Joe De Colores.

The lyrics to the Parent Song, with the italics being the parents, are below:

If I told you I couldn't be like you, would you love me still
I promise you I will
If you knew how I'm not the same as you, would you hug me still
I promise you I will

Do you know who you're talking to is not the boy you raised
Do you know who you're praying for is not the god you praise

The god we praise, he lives through you and heaven is our home
We're servants of the angel who lives upstairs alone

The boy we raised takes care of friends; we know we raised him to
They're lucky they have you
We know what you won't say
We love you anyway