In 1990 he was a guest artist at Princess Margaret's 60th birthday celebration at the Ritz Hotel and appeared as guest classical pianist at Zeffirelli's film premiere of Hamlet in the same year. Kouchak performed his interpretation of "Sakura" for Emperor Akihito at London's Victoria and Albert Museum in 1998. He also performed this at the Kobe earthquake charity event in 1995. This piece was recorded with Julian Lloyd Webber on his album Cello Moods and presented by Olympic ice skater Yuka Sato in 1999 and in 2017 a 20-year celebration concert was performed in Brussels. In 2011 and 2013 Kouchak performed the Russian song "Dark Is the Night" with the Royal Philharmonic Orchestra. In commemoration of the Russian Revolution 100 year anniversary a special concert was given in 2017. He performed Scheherazade at the official opening ceremony for the Emirates Airline Festival of Literature in March 2015 and composed the Festival's official 2016 theme song., In 2017 Kouchak organised and performed at a special Suomi 100 year celebration concert at the Embassy of Finland in London. Jason Kouchak published a music homage to Carlsen and Caruanaon the eve of the World Chess Championship match 2018 entitled "Victory Moves". In 2018, Kouchak also directed and composed a chess-themed ballet project with two orchestral ballet pieces at Holland Park outdoor chess set to mark the 100-year anniversary of women's rights and empowerment in the UK. In June 2019, at the Norway Chessclosing ceremony, Kouchak played Edvard Grieg's Piano Concerto in A Minor and the world premier of his own composition "Queen of the Knight". This performance was based on Philidor's Princess of Norway and Mozart'sQueen of the Night aria reflecting the fusion of classical chess with blitz Armageddon that characterised the tournament. In July 2019, Kouchak performed at the "Heart of Finland" international chess tournament opening ceremony.
Public contributions
Kouchak's contributions include the launching of two Children's Giant Chess Sets at Holland Park, London with Stuart Conquest in 2010 and in The Meadows Edinburgh in 2013 and John Tenniel'sAlice in Wonderland chess set. In 2013 Kouchak led a campaign to save the famous piano department at Harrods. He also composed the official chess charity theme song "Moving Forward" for CSC. Kouchak founded the Tsubasa Children's Choir in 2011 which opened the Matsuri Festival and performed Jupiter from Holst's Planets suite in the Queen's Jubilee year 2012 at Trafalgar Square, London. In 2016 his chess and ballet musical work was performed at the British Museum and in New York celebrating the role of women as Queens in chess. A specially designed 3D Royal Queen chess piece was unveiled in honour of the Queen's Journey in the same year. Kouchak choreographed and composed the theatrical stage production of the Queen's Journey in 2017 at Judit Polgar's Global Chess Festival. In 2018 he received an award as a Goodwill Ambassador of Artistic Values of Chess. In 2019 at the London Chess Conference Kouchak contributed to education and empowerment in women's chess.