The Vienna Philharmonic Orchestra is touring North America this March.
They start in New York on 03-March. Not sure of the flight number yet, but here is a link to their specially decalled Airbus 340.
If it helps the tail number is OE-LAL.
This a/c has also done regularly scheduled flights to KIAD-Washington Dulles on the daily Austrian flight so civilians have a chance to fly on it too.