Fifty years after the Philadelphia Orchestra's history-making visit to China in 1973 that helped build then-fledgling U.S.-China ties, Davyd Booth hopes for a repeat performance. The 73-year-old violinist returned to China this week with 13 fellow orchestra members to mark the 50th anniversary of the trip and carry on the ensemble's decadeslong effort to bring the United States and China closer together despite current political disagreements. “People all over the world are absolutely the same,” Booth said Thursday in Beijing, on the eve of their performance with the China National Symphony Orchestra at the National Centre for the Performing Arts.