A Hong Kong court rejected a government-requested ban on broadcasting or distributing the protest song “Glory to Hong Kong,” in a landmark decision that rejected a challenge to freedom of expression in the city. The song was written during mass protests against the government in the Chinese territory in 2019 and its lyrics call for democracy and liberty. The song has since been mistakenly played at several international sporting events instead of China’s national anthem, “March of the Volunteers.” Judge Anthony Chan on Friday refused to grant the ban, which would have targeted anyone who uses the song to advocate...