Mr. Ostrovsky has appeared on the great concert stages of the world, including Carnegie Hall, Avery Fisher Hall, the Philharmonie (Berlin), the Concertgebouw (Amsterdam), Queen Elizabeth Hall (London), La Scala (Milan), Herkulessaal (Munich), Musikverein (Vienna), and Tonhalle (Zurich), to name but a few.
His North American engagements have included performances in New York, Philadelphia, Cleveland, Chicago, and Toronto.
Concert tours have taken him throughout Western Europe and around the world to Japan, Hong Kong, Taiwan, and Australia.
During summers, he has performed at numerous festivals, including Mostly Mozart, Tanglewood, and Aspen in the United States; the Salzburg Festival; Menton in France, Stresa and Cremona in Italy, and the Australian Festival of Chamber Music.
He has performed in such prestigious chamber music venues as Alice Tully Hall and the 92nd Street Y in New York, the Library of Congress in Washington, D.C, and the Louvre in Paris.