From folk music to film music, the violin is the star of instruments. Millions of children all over the world learn how to play it and the top performers make it sound beautiful. They can also do clever things on it, with their fingers whizzing up and down, and the bow moving so fast you can hardly see it. Take the music of Mr. Paganini on track 1- he really knew how to show off. Here is the violin in the spotlight: listen to it sing!