Aerith's Theme (late beginner)  Sample  Lesson Sample  From Final Fantasy. In this "by ear" lesson you will learn a late beginner arrangement of this famous video game theme song. This lesson starts with a full demonstration of the song followed by a detailed "by ear" lesson demonstrating and explaining every phrase and note of the song. This song is also available in an intermediate level arrangement. Learning "by ear" is the fastest way to learn a song and memorize it at the same time.