You may turn on the CD player or the radio when you want to hear music--but once, in the days before modern technology, music was enjoyed whenever groups of people got together. You probably know some folk songs, a song that was passed along from person to person. Learn about: * types of folk songs * folk instruments * folk music's European and African roots * Cajun music * the music of Appalachia * Hispanic music * today's folk music. Modern music--Rock, Country, R&B, and more--is rooted deep in North America's musical folklore. And folk music is still alive and well today.