By Mehmet Emin Caliskan KYIV (Reuters) -On a Kyiv square where recent popular uprisings have scuppered Moscow’s ambitions in Ukraine, an orchestra assembled before a small crowd on Wednesday to play the national anthem as Russian forces advanced on the city. The Kyiv-Classic Symphony Orchestra also performed an excerpt from Beethoven’s “Ode to Joy”, on which the European Union’s anthem is based – a nod to the Ukraine government’s desire to move closer to Europe and away from Russia’s orbit. Dozens of people gathered to watch on the central Maidan Square, some waving Ukrainian flags. They appla…