Ivari Ilja is an internationally recognized accompanist and ensemble musician. His collaboration with renowned singers Dmitri Hvorostovsky, Irina Arkhipova, Maria Guleghina and Elena Zaremba has been particularly successful and acclaimed. Together they have performed many of the great concert stages of the world, including Carnegie Hall, Alice Tully Hall, Avery Fisher Hall of New York, The Kennedy Center of Washington, Davies Symphony Hall San Francisco, La Scala in Milan, Queen Elizabeth Hall and Wigmore Hall in London, the Bolshoi Theatre of Moscow, the great halls of St. Peterburg Philharmonic and Moscow Conservatory, Staatsoper Hamburg, Deutsche Oper Berlin, Suntory Hall of Tokyo, Musikverein of Vienna and Mozarteum of Salzburg.
Ivari Ilja has also held solo recitals in France, United Kingdom, Germany, Estonia, Russia, Sweden, Finland and performed as a soloist with several symphony orchestras such as Estonian National Symphony Orchestra, the Moscow Symphony Orchestra, the St. Petersburg Symphony Orchestra etc.
Ivari Ilja's repertoire mostly consists of romantic music, primarily of the works by Frédéric Chopin, Johannes Brahms, Robert Schumann, but also Wolfgang Amadeus Mozart, Sergei Prokofiev, Benjamin Britten and others.
Since 2003, Ivari Ilja has repeatedly toured with great Russian baritone Dmitri Hvorostovsky in USA, Europe, Hong-Kong, Japan and elsewhere.