Lithopone is a musical instrument made of stock, including 8 tones. This instrument has the most ever-complete tonality among the Lithopone sets found in Vietnam. Lithopone was discovered in 1992 in Mot mountain, Trung Luong hamlet, An Nghiep commune, Tuy An district, 35 km far from Tuy Hoa City to the North. Lithopone has date of 2,500 years.

Visitors coming to Phu Yen shall be introduced about Tuy An Lithopone Set and enjoyed with Lithopone art performance by artists. Through sound of Lithopone, visitors shall feel the beauty and magic in the traditional music of South Central Coast and Highland.