Traditionally kobyzes were sacred instruments, owned by shamans and bakses (traditional spiritual medics). According to legends, the kobyz and its music could banish evil spirits, sicknesses and death.
In the 1930s, when the first folk instrument orchestras were established in the Soviet republic of Kazakhstan, a new kind of kobyz came into existence. It now had four metallic strings and thus became closer to a violin. Such a modernized kobyz can be used to play both Kazakh music and the most complicated works of violin literature. One of the few western musicians to use the kobyz is Trefor Goronwy.
The kyl kyyak (Kyrgyz: ? [q?l q?'j?q]) (sometimes spelt kyl kiak and sometimes without the 'kyl') is a stringed musical instrument used in Kyrgyz music. The instrument is carved from a single piece of wood (typically apricot) and typically measures 60-70 cm. It has 2 strings, one to provide melody and the other resonance. The kyl kyyak is played vertically with a bow and can be played on horseback. The strings and bow are normally made from horse hair and many instruments feature a carved horse's head. This all reflects the importance of the horse in Kyrgyz rural culture.
Bowed instruments may have originated in the equestrian cultures of Central Asia, an example being the Kobyz (Kazakh?) or kyl-kobyz is an ancient Turkic, Kazakh string instrument or Mongolian instrument Morin huur:Turkic and Mongolian horsemen from Inner Asia were probably the world's earliest fiddlers. Their two-stringed upright fiddles were strung with horsehair strings, played with horsehair bows, and often feature a carved horse's head at the end of the neck. ... The violins, violas, and cellos we play today, and whose bows are still strung with horsehair, are a legacy of the nomads.
It is believed that these instruments eventually spread to China, India, the Byzantine Empire and the Middle East, where they developed into instruments such as the erhu in China, the rebab in the Middle East, the lyra in the Byzantine Empire and the esraj in India. The violin in its present form emerged in early 16th-Century Northern Italy, where the port towns of Venice and Genoa maintained extensive ties to central Asia through the trade routes of the silk road.
The modern European violin evolved from various bowed stringed instruments from the Middle East the Byzantine Empire. It is most likely that the first makers of violins borrowed from three types of current instruments: the rebec, in use since the 10th century (itself derived from the Byzantine lyra and the Arabic rebab), the Renaissance fiddle, and the lira da braccio (derived from the Byzantine lira). One of the earliest explicit descriptions of the instrument, including its tuning, was in the Epitome musical by Jambe de Fer, published in Lyon in 1556. By this time, the violin had already begun to spread throughout Europe.