Oct 21 2015 ĐẶNG VĂN KHAI NGUYÊN , a Vietnamese Jew’s harp player, has succeeded in making a Taiwanese Jew’s harp DATOK . October 2015 ĐẶNG VĂN KHAI NGUYÊN , a Vietnamese Jew’s harp player, has succeeded in making a Taiwanese Jew’s harp DATOK . October 2015 Share this:TwitterFacebookLike Loading... Related