Okay kiddo, let me explain. Carl Seashore was a very famous person who lived a long time ago, just like some famous people you might have heard of, like Martin Luther King Jr. or Albert Einstein.
Carl Seashore was a scientist who studied music and sound. He wanted to learn more about how different sounds affected people's emotions and feelings. He thought that music and sound could be really powerful tools for making people happy or sad.
He did a lot of experiments with music and sound. He would play different kinds of music for people and ask them how it made them feel. He would also ask them to sing certain notes or play certain musical instruments to see how they responded.
Carl Seashore was very smart and wrote many books and articles about music and sound. He helped other scientists and musicians learn more about how sound works and how to use it to create different moods and emotions.
So, in short, Carl Seashore was a very important person who helped us understand more about music and sound and how it affects us.