 Most music worldwide has been tuned to 440 Hz since the International Standards Organization, or the ISO, endorsed it in 1953. According to this theory, there was an organized effort to change concert pitch to 440 Hz at the start of the last century to codify an old-world new order of central pitch. This was set into motion in order to increase anxiety levels in individuals, causing them to think and feel in specific ways, making them a prisoner of a consciousness that breathes disharmony.