Islamic music may refer to religious music, as performed in Islamic public services or private devotions, or more generally to musical traditions of the Muslim world. The heartland of Islam is the Middle East, North Africa, the Horn of Africa, Balkans, and West Africa, Iran, Central Asia, and South Asia. Due to Islam being a multi-ethnic religion, the musical expression of its adherents is vastly diverse. Indigenous traditions of various part have influenced the musical styles popular among Muslims today. The word "music" in Arabic, the language of Islam, (mūsīqā موسيقى) is defined more narrowly than in English or some other languages, and "its concept" was at least originally "reserved for secular art music; separate names and concepts belonged to folk songs and to religious chants".
At least one scholar (Jacob M. Landau) makes the generalization about Islamic music that it "is characterized by a highly subtle organization of melody and rhythm", that "the vocal component predominates over the instrumental", and that the individual musician "is permitted, and indeed encouraged, to improvise".
