UnScramble this Word: e t e d m l?

Questions

The composer is said to have written this piece upon learning of the capture of Warsaw by the Russians. ?

This Russian composer is responsible for the stirring Prelude in C# minor. ?

What was the connection between Alessandro and Domenico Scarlatti ?

Chopin's Polonaise #53 in Ab was adapted for what popular song ?

Walt Disney's "Fantasia" included a performance of what composer's "Tocatta and Fugue in D minor" ?