A string instrument or a stringed instrument is popular around the world. It uses vibrating strings to produce music. The strings may be of gut, metal, fiber, or plastic. These may be plucked, bowed, or struck. Although there are many string instruments native to the cultures and tribes around the world, there are five common types used in the orchestra. These are the violin, viola, cello, double bass, and harp. The violin family of stringed instruments includes the violin, viola, cello, and sometimes the double bass. These are supported by a neck and a bout and are played using a bow. Harps are instruments in which the strings are contained within a frame and are plucked. 9 What method of organization is used in this passage? A. definition B. cause/effect C. sequence D. classification