Classical music, is music that has been composed by musicians who are trained in the art of writing music. This is called composing. It is written down in music notation, so that other musicians can play it. It originated in the 1750s and is described as "art music." The term “classic” means an art which is so good, that it will always be enjoyed by future generations. For many composers in the classical world of music, nature has provided a starting point for their creativity. The sounds of nature have been used to compose some of the most treasured classical music pieces.