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"Hu, Hu, the heart needs strings, the hands need drums, the sleeves need strings and drums, and the snow needs dancing" comes from Bai Juyi's "Hu, quit learning" in the Tang Dynasty.
Hu is a dancer who dances Hu Xuanwu. Hu Xuan dance is a folk dance in the western regions. Hu Xuan dance is characterized by fast melody, fast rhythm and many turns. Hu Xuan Dance got its name because it had to spin rapidly and constantly when dancing.
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The poem "Xi Night in Jie Jin by Hu Xuannv" depicts the beauty of this Hu Xuan dancer's dance in detail with exaggeration and metaphor. It explains the origin of Hu Xuan dance and its popularity in the Central Plains, and how Hu Xuan dancers who are good at dancing are appreciated and valued by Xuanzong of Tang Dynasty. While describing the amazing beauty of this dance, the poet expressed his critical attitude towards the Tang Dynasty monarch who was addicted to Hu Xuan's dance.
Hu Xuan dance is one of the most popular dances in the Tang Dynasty. It ranks as the three most popular music and dances in the Tang Dynasty, along with "The Music of the King of Qin Breaking the Array" and "Dancing in Dress and Feather". People from the Western Regions, He Du, once offered sacrifices to Hu in the Tang Palace.
Baidu Encyclopedia-Hu-Wu Mi Xue