On 25 April 2010 , during a chamber concert in Vienna , he had to pause during pieces forced by the pain .
Schiff often had pain in his right shoulder and his right arm ( the one that leads the bow ) , obviously by overexertion .
On 25 April 2010 , during a chamber concert in Vienna , Schiff had to pause during pieces forced by the pain .
Schiff often had pain in his right shoulder and his right arm ( the one that leads the bow ) , obviously by overexertion .