In today's world, music plays a huge part in human nature. Everywhere you go, you hear a radio, CD player, CD-ROM, live bands, singing and even humming.
Many people make a living in the field of music.
There are many musical professions available in the '90s. Commercial and TV programs use this method to keep a theme reminding you of them in your head. If you think about it, every song conveys a message. Advertising or entertainment, most people wake up with a song in their heads, although some songs are thought to be better than others.