The rich and varied music of Sudan is made up of traditional, rural East African roots, as well as of Arabic, Western or other African influences, especially on the popular urban music from the early 20th century onwards. Since the establishment of big cities like Khartoum as melting pots for people of diverse backgrounds, their cultural heritage and tastes have shaped numerous forms of modern popular music. In the globalized world of today, the creation and consumption of music through satellite TV or on the Internet is a driving force for cultural change in Sudan, popular with local audiences as well as with Sudanese living abroad.