Title: Piano Concerto (Copland)
Content:  The Concerto for Piano and Orchestra is a musical composition by the American composer Aaron Copland. The work was commissioned by the conductor Serge Koussevitzky who was then music director of the Boston Symphony Orchestra. It was first performed on January 28, 1927, by the Boston Symphony Orchestra conducted by Koussevitzky with the composer himself as the soloist. The piece is dedicated to Copland's patron Alma Morgenthau Wertheim.
Title: Piano Concerto (Carter)
Content:  The Concerto for Piano is a composition for solo piano and orchestra by the American composer Elliott Carter. The work was commissioned by the pianist Jacob Lateiner with support from the Ford Foundation. It was composed between 1964 and 1965 and was first performed at Symphony Hall, Boston on January 6, 1967, by Lateiner and the Boston Symphony Orchestra under the conductor Erich Leinsdorf. The piece was dedicated to the composer Igor Stravinsky for his 85th birthday.
Title: Piano Concerto (Lutosławski)
Content:  The Concerto for Piano and Orchestra is a composition for solo piano and orchestra by the Polish composer Witold Lutosławski. The music was commissioned by the Salzburg Festival. It was first performed at the festival on August 19, 1988 by the pianist Krystian Zimerman and the Austrian Radio Orchestra under the direction of the composer. Lutosławski dedicated the piece to Zimerman.
Title: Piano concerto
Content:  concertos by Edvard Grieg, Johannes Brahms, Camille Saint-Saëns, Franz Liszt, Pyotr Ilyich Tchaikovsky, and Sergei Rachmaninoff. Alexander Scriabin, Antonín Dvořák, Edward MacDowell, and Franz Xaver Scharwenka wrote some lesser-known concertos during this time. In 1899, Amy Beach completed her Piano Concerto in C-sharp minor, the first piano concerto composed by a female American composer. Edward Elgar made sketches for a piano concerto but never completed it. In the 19th century, Henry Litolff blurred the boundary between piano concerto and symphony in his five works entitled Concerto Symphonique, and Ferruccio Busoni added a male choir in the last movement of his hour-long 
Title: Piano Concerto No. 1 (Lieberson)
Content:  The Piano Concerto No. 1 is a composition for solo piano and orchestra by the American composer Peter Lieberson. The work was commissioned by the Boston Symphony Orchestra for its centennial. Lieberson started composing the piece in 1980 and completed it on March 2, 1983. It was written for the pianist Peter Serkin, who first performed the concerto with the Boston Symphony Orchestra under the direction of Seiji Ozawa on April 21, 1983. The piece is dedicated to Peter Serkin and Seiji Ozawa. It was a finalist for the 1984 Pulitzer Prize for Music.
Title: Piano Concerto (Higdon)
Content:  The Piano Concerto is a concerto for solo piano and orchestra by the American composer Jennifer Higdon. It was commissioned by the National Symphony Orchestra and was first performed December 3, 2009 at the John F. Kennedy Center for the Performing Arts in Washington, D.C.. The premiere featured pianist Yuja Wang and the National Symphony Orchestra under conductor Andrew Litton.
Title: Piano Concerto (Salonen)
Content:  The Piano Concerto is a concerto for solo piano and orchestra in three movements by the Finnish composer Esa-Pekka Salonen. The work was jointly commissioned by the New York Philharmonic, the BBC, the NDR Symphony Orchestra, and Radio France. It was premiered February 1, 2007 in Avery Fisher Hall, New York City, with Salonen conducting the pianist Yefim Bronfman and the New York Philharmonic. Salonen dedicated the piece to Yefim Bronfman.
Title: Piano Concerto (Gruber)
Content:  The Piano Concerto is a composition for piano and orchestra by the Austrian composer Heinz Karl Gruber. The work was commissioned for the pianist Emanuel Ax by the New York Philharmonic, the Royal Stockholm Philharmonic Orchestra, the Berlin Philharmonic, and the Tonhalle Orchester Zürich. It was composed from 2014 through 2016 and was given its world premiere by Emanuel Ax and the New York Philharmonic under the direction of Alan Gilbert at David Geffen Hall on January 5, 2017.
Title: Piano concerto
Content:  Wilhelm Furtwängler wrote his Symphonic Concerto for Piano and Orchestra, which lasts more than one hour, in 1924–1937. In a more general sense, the term "piano concerto" could extend to the numerous often programmatic concerted works for piano and orchestra from the era – Beethoven's Choral Fantasy, Liszt's Totentanz and Ruins of Athens Variations, and Richard Strauss's Burleske are only a few of the hundreds of such works. The few well-known piano concertos that dominate 20th-century and 21st-century concert programs and discographies comprise only a small part of the repertoire that proliferated on the European music scene during the 19th century.
Title: Piano Concerto No. 1 (Ginastera)
Content:  The Piano Concerto No. 1, Op. 28, is the first piano concerto by the Argentinian composer Alberto Ginastera. The work was commissioned by the Koussevitzky Foundation and was completed in 1961. It was first performed by the pianist João Carlos Martins and the National Symphony Orchestra conducted by Howard Mitchell in Washington, D.C., on April 22, 1961. The concerto was Ginastera's first composition for piano since his Piano Sonata No. 1, Op. 22, written in 1952. It is dedicated to the memory of Serge and Natalie Koussevitzky.

Question: Who was the composer of Piano Concerto?
Answer: Tan Dun.
Dun Tan.