When he was 5 years old, under the exclusive sponsorship of the Baosteel High Art Award Fund Council, he successfully held the 'Piano Recital Concert for Five-Year-Old Children' at the Shanghai Concert Hall, performing a complete set of 15 pieces of Bach's two creative works and Mozart. , Haydn Sonata, causing shock in the industry. There are only a handful of people in the world who can hold a solo concert at such a young age and perform a complete set of Bach works that are extremely difficult for children.
At the age of 6, he successfully performed Mozart Piano Concerto K467 with the Shanghai Symphony Orchestra conducted by Chen Xieyang. At the age of 7 and 9, he won the first prize in the Shanghai Piano Competition and the Chinese Works Performance Award twice.
Since the end of 2001, at the age of 11, he has successfully held piano solo concerts in Shenzhen, Beijing, Shenyang, Nanjing and other places, focusing on the extremely difficult Chopin etudes OP10. It has been highly praised by experts such as Zhou Guangren.
In 2002, he participated in his first international competition at the age of 12 - the 4th Tchaikovsky International Youth Music Competition and won first place in piano. Becoming the youngest first place winner in the history of this prestigious event.
In 2004, at the age of 13, he participated in the 5th Asian Chopin International Piano Competition held in Japan. At the age of 13, he participated in the concerto competition without age limit and competed with contestants who were all college students and graduate students. Won the gold medal in the concerto category without age limit and three additional special awards awarded by the organizing committee. His complete set of Chopin etudes OP25 and Chopin Piano Concerto No. 1 were highly praised by Yasinski, chairman of the jury of the 14th Chopin International Piano Competition, and called him: a true genius! And he was cordially invited to perform at the Polish Music Festival.
In August 2004, at the 49th Polish International Chopin Music Festival (the most famous music festival in the world), which gathered many of the most famous pianists in the world today, he performed Chopin Etudes 0P25 The complete set of twelve pieces and other Chopin works aroused extremely strong shocks among the masters and the audience present. Zhang Haochen used the encore to take nearly ten curtain calls and performed four additional pieces of music to thank the audience. Polish national television conducted a special interview and report on it. The music festival magazine said: "It shocked all the masters and audiences present with its flawless technique and the most beautiful music."
In March 2005, he went to the famous American Conservatory of Music (famous for cultivating talented young musicians) to take the entrance examination for the Curtis Institute of Music, and stood out with the best score among 115 outstanding piano major candidates from all over the world. Gaining great appreciation from the masters and experts present, he became the only Chinese contestant admitted among the 16 professional students who took the exam, including the best students from the Central Conservatory of Music. All teachers (***6) in the college regard him as their first student candidate. Finally, he was accepted as a disciple by the famous American piano master, piano educator, and Dean Curtis Grafman (Lang Lang’s teacher).
In March 2006, he participated in the 'Young Student Artistic Talent' competition held by the Philadelphia Orchestra and was sincerely praised by the judges composed of the orchestra's artistic director, conductor and chief conductor. Not only did he win first place in all instrumental music (a piano player has not won an award for 8 years), but he also won the Outstanding Achievement Award added by the organizing committee for his vivid interpretation of Rachmaninoff's Second Piano Concerto. As a result, he was invited by the world-famous conductor Eschenbach to perform publicly in Philadelphia with the world-famous orchestra the Philadelphia Orchestra in September 2006.
He has visited France, Germany, Japan, Poland, Canada, the United States, Egypt and other countries to hold concerts and performances, all of which have received high praise.
He has collaborated with the Shanghai Symphony Orchestra, Xiamen Philharmonic Orchestra, Guangzhou Symphony Orchestra, Hong Kong Children’s Symphony Orchestra, Shenzhen Symphony Orchestra, China National Symphony Orchestra, and Polish National Philharmonic Orchestra on many concertos, all of which have been highly praised. .