"Certain words and phrases captivated him, and he would loop them aloud endlessly: trumpet vine, business, chrysanthemum. "
I want to know more about this idea.
I think we can agree that words like BIZ-en-Ness and CHRYS-ant-THENUM have a strange ring to them compared to the rest of the English language when pronounced aloud. (Also that word, "ALOUD")
From my experience, I'd expect most people as kids had at least one pet words that had nice ring.