Tan Dun (simplified Chinese: Tan Dun ; traditional Chinese: Tan Dun ; pinyin: Tan Dun, Mandarin pronunciation: [than tu@n]; born 18 August 1957) is a Chinese contemporary classical composer and conductor, most widely known for his scores for the movies Crouching Tiger, Hidden Dragon and Hero, as well as composing music for the medal ceremonies at the 2008 Beijing Olympics. His works often incorporate audiovisual elements; use instruments constructed from organic materials, such as paper, water, and stone; and are often inspired by traditional Chinese theatrical and ritual performance. In 2013, he was named a UNESCO Goodwill Ambassador. He has won numerous awards for his works, including an Academy Award, a Grammy Award and a BAFTA award.
In the mid-1990s, Tan Dun began working on another series of orchestral works known as the Yi series, named for the I Ching (Yi Jing in pinyin). Each numbered work in the series builds upon the original, Yideg: Concerto for Orchestra (published 2002), by adding a solo instrument. The first concerto in the series, Yi1: Intercourse of Fire and Water (1994), was written for and premiered by cellist Anssi Karttunen. The second work, Yi2: Concerto for Guitar and Orchestra (1996), combines flamenco and pipa techniques and was premiered by Sharon Isbin. Originally titled Secret Land, Tan Dun wrote a concerto for twelve solo cellos and orchestra called Four Secret Road of Marco Polo (2004). Commissioned and premiered by the Berlin Philharmonic, the work is a musical exploration of the Silk Road. To achieve these sounds, the cello soloists employ sitar and pipa techniques. Tan Dun wrote a concerto for Lang Lang titled Piano Concerto: "The Fire" (2008), a commission by the New York Philharmonic. The concerto is reportedly inspired by the composer's love for martial arts, and the soloist is instructed to play certain passages of the music with fists and forearms. Other more tranquil sections evoke ancient Chinese instruments such as the guqin. In 2008, Tan Dun was commissioned by Google and YouTube to write an inaugural symphony for the YouTube Symphony Orchestra (YTSO) project. The resultant work, Internet Symphony No. 1 "Eroica", was recorded by the London Symphony Orchestra and uploaded to YouTube in November 2008, thus beginning the open call for video audition submissions. Voted on by members of the YouTube community as well as professional musicians, the YTSO was assembled of 96 musicians from over 30 countries. In April 2009, a mashup video of the submissions was premiered at Carnegie Hall, followed by a live performance of the work.

Q: What is one of the concertos he wrote?
A: Originally titled Secret Land, Tan Dun wrote a concerto for twelve solo cellos

Q: Was this performed live anywhere?
A: unknown
What was another piece that he wrote?
Yideg: Concerto for Orchestra (published 2002), by adding a solo instrument. Tan Dun wrote a concerto for twelve solo cellos and orchestra called Four Secret Road of Marco Polo (2004). Internet Symphony No. 1 "Eroica", Tan Dun was commissioned by Google and YouTube to write an inaugural symphony for the YouTube Symphony Orchestra (YTSO) project. In 2008, Tan Dun was commissioned by Google and YouTube to write an inaugural symphony for the YouTube Symphony Orchestra (YTSO) project.
In 2008, Tan Dun was commissioned by Google and YouTube to write an inaugural symphony for the YouTube Symphony Orchestra (YTSO) project.