Chihwapyeong(致和平) is recorded in the Chronicles of Sejong, from chapter 140 to 144. The musical structure of Chihwapyeong 1ㆍ2ㆍ3 is divided into two categories, Chihwapyeong 1ㆍ2 and Chihwapyeong 3. In Chihwapyeong 1ㆍ2, the Korean lyrics of Yongbieocheonga(龍飛御天歌) are sung in different style but the s[ores are same. In Chihwapyeong 3, the 125 stanzas of Yongbieocheonga are divided into three pans(See table 2-6). The rhythmic structure of Chihwapyeong 1ㆍ2ㆍ3 is that of repetition in accordance with the division of sections. The rhythmic structures of Chihwapyeong 1ㆍ2ㆍ3 are categorized into six kinds of types. The first is the structure which is composed of eight lines of 32 squares. The second type is composed of seven lines, the third, six lines, the fourth, five lines, the fifth, four lines an the sixth, three lines.