UnScramble this Word: m g i r a n i e?

Questions

This Russian pianist and composer endured the German siege of Leningrad. ?

The 11th and youngest son of J.S. Bach studied in Italy before moving to which country where his musical career fluorished ?

This ballet was first performed in 1892 in St. Petersburg. ?

"Fur Elise was written in 1810 as a short piano piece by what composer ?

The song "Stranger in Paradise" (1953) was taken from what 19th century Russian composition ?