How did the Kazakhs Came Up with Music?

Kazakhs are one of the most musical peoples, but they did not have notes, and their main instrument had only two strings. Nevertheless, many unique pieces of music and musical instruments have reached our days from the depths of centuries, but much has been lost. Who is now reviving the musical heritage of the nomads, and what mysteries does it keep?

How did Kazakh music differ from musical works of other nations? How and who taught people the musical art in ancient times? How much did musical instruments cost in the past?