I am wondering if it's hard for native speakers to understand the music in Chinese, if they're not given lyrics. It came to my mind because, since Chinese words have different meanings depending on tones, when sung, the tones kind of disappear. Does that make it harder for those who listen to some song that they've never heard to understand meanings? The music videos in Chinese almost always have Chinese subtitles. I am sure that has to do with the fact that it's hard to understand the lyrics without them?