When shapes are put together in different ways, they create different forms. These forms can create images like tress, houses and people. A composer does the same thing. He uses pieces of music and puts them together in different ways to create different musical forms. This is where the main themes are introduced.
Themes are like characters in a book.
There are two themes in the Statement section. They are called the Theme 1 and Theme 2 . The second section is called the Fantasia . This is where the composer plays with the two themes. Listen for the minor key.