Pin and Pia harp or a line of 2-4 lines that have evolved from a gourd harp. By increasing the number of calls Lancer cars 1m skull harp made of gourd cut in half. As well as gourd harp Or it has made with coconut. How to play it like a gourd harp played in the past by local authorities in the north of Thailand. Unprecedented players Pin Pia while going "woo girl" by harpist accompaniment of singing.