Coke.wpntr2018-12-19T18:03:51+00:00Originating from the highlands of Vietnam, the ‘Co Ke’ (left side), an instrument with a pipe shape, is a kind of ‘Erhu’ instrument. It is played by the Hmongs, who who call the instrument ‘Galangchan’. This simple instrument is covered with rigid plastic and the bottom part of the pipe is open. When compared with the Nhi, another instrument played commonly in Vietnam, the ‘Co Ke’ is a folk music instrument.