There is a big difference when you hear Chinese and Korean spoken. As for Chinese, there are several different forms of Chinese, but each one I have heard are tonal. You will hear the tones. There also seems to be a lot of not only diphthongs, but also triphthongs. I don’t speak Chinese, but I have heard it spoken a lot because of the Chinese being taught at the university where I was teaching.
As for Korean, there are clear syllables pronounced when Korean is spoken. In fact, at times, when they speak, you may hear no voice inflection at all. Some of them may even seem monotone to you. Especially, if they read in front of a group, they will sound monotoned. It is not like a song at all like Chinese. In fact, when they speak or read in front of a group, they may even sound like they are in a hurry.
I have a son who is a lawyer. He has a problem with his brain going so fast that he sounds like he never takes a breath. I pulled him aside when he was young and taught him to speak publicly. I taught him to slow down, take pauses, and try to let the people keep up with him. I taught him where to let his voice fall and rise. He became an excellent speaker regardless of how fast that brain of his goes. He stands up in court everyday arguing court cases, and it all began when I taught him how to speak in front of a crowd while he was growing up.
I often wish I could for many Koreans what I did for my son. Koreans have very complicated minds like my son, and they can go a million miles per hour and not even stop for breath when they speak. I haven’t heard the Chinese doing that. They seem to be more laid back and swinging with what they say. You hear their pauses, and you hear their tones.