This is a Chinese song called 《醉赤壁》(Tale of the Red Cliff). This cover is by 王瑞. She is going to play the guitar and sing this song.
The song Tale of the Red Cliff was first released in Asia on October 18, 2008. The singer/composer is JJ Lin (林俊杰) who is a Singaporean singer, songwriter, record producer and actor based in Taiwan.
The melody employs elements of Chinese folk music and classical Chinese music through the use of the pentatonic scale. The pentatonic scale is the most characteristic scale that is representative of Chinese culture.
Let's enjoy this Chinese girl version:
