11. Is it Sergey Rachmaninov?
Yes, despite all the following attempts to talk you out of it. Apparently there are several transliterations of his name, so I won't be picky about the spelling. He was born in NW Russia, near Novgorod if I remember rightly. Also, Russia is one of the former Soviet territories.
11a. Who is Aram Khachaturian?
An Armenian composer.
11b. Who is Igor Fyodorovich Stravinsky?
Another Russian composer.
Can I go now, please, Special Agent Malone? (':detective:')
We have no money; we must use our brains. -Ernest Rutherford.