Question: In what country did Nikolaus Harnoncourt conduct a concert in 2001 and 2003?
Sentence (from "Vienna New Year's Concert"): The Vienna New Year's Concert (Neujahrskonzert der Wiener Philharmoniker ) is a concert of classical music performed by the Vienna Philharmonic that takes place each year in the morning of New Year's Day in Vienna, Austria and is regarded by many as the most important classical concert worldwide.
Relevant evidence: Yes