Navajo music is music made by Navajos, mostly hailing from the Four Corners region of the Southwestern United States and the territory of the Navajo Nation. While it traditionally takes the shape of ceremonial chants and echoes themes found in Diné Bahaneʼ, contemporary Navajo music includes a wide range of genres, ranging from country music to rock and rap, performed in both English and Navajo. Traditional Traditional Navajo music is always vocal, with most instruments, which include drums, drumsticks, rattles, rasp, flute, whistle, and bullroarer, being used to accompany singing of specific types of song. As of 1982 there were over 1,000 ceremonial practitioners qualified to perform one or more of thirty ceremonials and countless shorter prayer rituals, otherwise known as 'Medicine People', which restore which holds the semantic field of 'harmonious condition' and 'beauty', good health, serenity, and balance. These songs are the most sacred holy songs, the "complex and comprehensive" spiritual literature of the Navajo, may be considered classical music, while all other songs, including personal, patriotic, daily work, recreation, jokes, and less sacred ceremonial songs, may be considered popular music. The "popular" side is characterized by public performance while the holy songs are preserved of their sacredness by reserving it only for ceremonies (and thus not featured on the recording listed at bottom). The longest ceremonies may last up to ten days and nights while performing rituals that restore the balance between good and evil, or positive and negative forces. The , aided by sandpaintings or masked , as well as numerous other sacred tools used for healing, chant the sacred songs to call upon the Navajo gods and natural forces to restore the person to harmony and balance within the context of the world forces. In ceremonies involving sandpaintings, the person to be supernaturally assisted, the patient, becomes the protagonist, identifying with the gods of the Diné creation stories, and at one point becomes part of the story cycle by sitting on a sandpainting with iconography pertaining to the specific story and deities. The lyrics, which may last over an hour and are usually sung in groups, contain narrative epics including the beginning of the world, phenomenology, morality, and other lessons. Longer songs are divided into two or four balanced parts and feature an alternation of chantlike verses and buoyant melodically active choruses concluded by a refrain in the style and including lyrics of the chorus.