The princess is the antagonist
9, 18, and 27 are three numbers that have a GCF of 9
I'm guessing the central idea of "the value of music that tickles the brain" is that music makes you smarter, increases IQ level, makes language development smoother, enhances creativity, and increases the reactions in your brain to work faster. Music has many benefits and these are just a few. You can always also just research on the topic of music effects on the brain online. Hope it helps!
I think argument cause I find it easier