The war in Ukraine looms over the prestigious contest named for the pianist Van Cliburn, who was a symbol for art transcending global politics.FORT WORTH, Texas — On a sultry recent morning, 30 young pianists from around the world gathered in an auditorium at Texas Christian University here for the start of the Van Cliburn International Piano Competition, one of the most prestigious contests in classical music.The mood was celebratory. But politics also loomed. The Cliburn, defying pressure to ban Russian competitors after the invasion of Ukraine, had invited six Russians to take part, as well as two pianists from Belarus, which has supported the Russian invasion. A Ukrainian also made the cut.As they signed posters outside the auditorium and were fitted for cowboy boots, a Cliburn tradition, several competitors from those countries said that they found it difficult to think beyond the war.“It’s a tragedy, what’s happening now,” said Dmytro Choni, a 28-year-old pianist from Kyiv. “I’m trying to stay focused on the music.”Dmytro Choni, from Kyiv, is the sole competitor from Ukraine. “I’m trying to stay focused on the music,” he said.Jake Dockins for The New York TimesIlya Shmukler, 27, a competitor from Russia, said he at times felt guilty about the invasion. “The key words for me,” he said, “are shame and responsibility.”The politics surrounding the Cliburn competition show the depths to which the war has upended the performing arts. Largely unaccustomed to grappling with geopolitical concerns, arts organizations are now being forced to resolve difficult questions about the rights of Russian and Ukrainian artists, the morality of cultural boycotts and the limits of free expression. Many institutions have cut ties with artists closely associated with President Vladimir V. Putin of Russia, while continuing to welcome Russians with less public political leanings.Competitions like the Cliburn, which help determine who rises in the field, have come under intense scrutiny. Some contests, responding to pressure from board members and activists, have banned Russians altogether. Others have announced plans to disinvite Russians, only to face a backlash and reverse course weeks later.The debate over Russian artists echoes similar discussions playing out in the athletic sphere, with Wimbledon saying that it would not allow players from Russia and Belarus this summer, and FIFA, soccer’s international governing body, kicking out all Russian teams from global competition.The Cliburn, named for Van Cliburn, an American whose victory at the International Tchaikovsky Competition in Moscow in 1958, during the Cold War, was seen as a sign that art could transcend politics, said that it had an obligation to defend Russian artists, who have long been a prominent force in classical music.Audience members at a performance by the Russian pianist Geniushene. The decision to include Russians has alienated some Ukrainian activists and Texas residents.Jake Dockins for The New York TimesThe Cliburn has also taken steps to ensure some degree of political conformity, warning competitors that any statements in support of Putin or the invasion of Ukraine could result in disqualification or the revocation of awards.“I don’t think sanctioning a young pianist who is 22 years old will have an effect on the Russian government,” said Jacques Marquis, the Cliburn’s president and chief executive. “That will play exactly into the playbook of Putin, if we isolate the Russian people.”While the Cliburn was widely applauded in the arts world for allowing Russians to compete, the decision has alienated some Ukrainian activists and Texas residents. Some argued that the only way to put pressure on Moscow to end the invasion is to cut political, economic and cultural ties.“It’s a shame that the Cliburn is not paying attention to human suffering and public opinion,” said the Rev. Pavlo Popov, the leader of a Ukrainian church in suburban Dallas. “How do you influence Russia? It has to come from the people. If they don’t like the war, if they want to be a part of the civilized world, if they want to be part of these competitions, they have to stand for the same values.”Many of the Russian competitors now live outside Russia and have said that they are fiercely opposed to the invasion. Some have taken part in protests and signed petitions demanding the withdrawal of Russian forces.Geniushene at her host family’s home in Fort Worth. To summon the proper character for a series of Brahms Ballades, she said, she thought of suffering in Ukraine.Jake Dockins for The New York TimesAnna Geniushene, a 31-year-old pianist from Moscow, said she felt a duty as an artist to show solidarity with Ukraine. When she tried to summon the right character for a series of Brahms Ballades in the quarterfinal round of the competition, she said, she thought about the grief and suffering in Ukraine.“I have a lot of chats with different people who are really surprised to know that the entire population, the whole nation, is not supporting and rooting for Putin,” said Geniushene, who lives in Lithuania. “Being an artist doesn’t mean that you are a kind of freelancer, that you’re living in a completely different world, and that you forget about politics and everything that you are not involved in. You must speak up and spread the word.”Even as they have denounced the war, many Russian competitors said they were distraught by the scrutiny of Russian artists in the United States and Europe. Some Western cultural institutions have demanded that artists condemn Putin as a condition for performing. Others have removed works by Russian composers in an effort to show solidarity with Ukraine.“The fact that you’re Russian doesn’t mean you’re a bad person,” said Sergey Tanin, 26, a pianist from Siberia who added that he had lost engagements and invitations to competitions since the start of the war. “We shouldn’t be forced to have political discussions before concerts or competitions.”Arseniy Gusev, who grew up in St. Petersburg, says he feels connected to Russia’s past and musical heritage.Jake Dockins for The New York TimesSergey Tanin, from Siberia, said he had lost engagements since the war started.Jake Dockins for The New York TimesRussian participants said they felt that the Cliburn offered a platform to remind the world of a side of Russia distinct from Putin’s bellicosity.Arseniy Gusev, a Russian pianist who grew up in St. Petersburg, said that as an artist, he had grown distant from contemporary Russia but felt intimately tied to its history, and particularly to the music of composers like Scriabin and Rachmaninoff.“I cannot say I belong to this contemporary Russia anymore, but I feel I’m connected to some parts of its past culture,” said Gusev, 23, who will begin a graduate program at the Yale School of Music in fall. “And I think in this way that unites many of us here.”How the Ukraine War Is Affecting the Cultural WorldCard 1 of 6Gavriel Heine. 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