rudy tanzi. (applause) >> dr. tanzi: thank you.ady told you that you need to become the user of your brain, and not let your brain use you. you need to realize that you are much more than the sum of your thoughts, and feelings, and sensations. you need to become the master of your brain. you need to balance all three parts of your brain, so that they work in perfect harmony and balance. now, in addition to being a scientist, i played piano for most of my life, including professionally for a while. and you know, what i appreciate about music is that it can be used to activate these three different parts of the brain. now, i'm gonna show you a little bit on the piano. so let's start with the reptilian brain, right? this is, you know, usually the aggressive part, the fight or flight. so to represent a reptilian brain, we can think about a 2-4 beat, a march. (piano plays) you feel the aggression, you feel the marching, okay? 'cause the reptilian brain tends to want to take territory, and if it can't, it flees. it says take food. it say