The most creative music is rarely the most popular.
Much folk music is timeless.
Great folk music tells stories, makes people laugh, and makes people think. I also recommend The Second Hand Dance Company if you prefer being a spectator. They are athletic yet humorous, an entertaining group even for those normally not interested in modern dance. For a completely different mood, I enjoy early music, played on authentic instruments. I first became interested in this sort of music when I lived in Switzerland , and heard many fine concerts by the Basel Schola Cantorum.