zyau harp has 口琴 names both have the same shape as the 口琴 like all over the world. The 口琴 is oral on the exhale, and the body resonate while attached to the body toward the outside on the bar to lessen the concert. Blowing the breath with strong and big sound is ringing. This is a Indian karunatexikku etc. and can be used for church of Jesus Christ (Chan 口琴 called morchang).