Historically Karabakh developed as one of the biggest cultural centers of Azerbaijan, particularly its musical culture. Mugham is one of the many musical traditions of Karabakh. It is a highly complex form of music with specific systems and concepts of musical expression that demand of its performers a very high standard of professionalism. Mugham is a traditional musical form characterized by a large degree of improvisation and draws upon popular stories and local melodies. Azerbaijan classical music also has traditional roots in the region of Karabakh.