Misc: Which detective story writer created the character Tommy Beresford?

Questions

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" ?

Who introduced the idea of composition based on "tone-rows" ?

This pianist gave his first public performance in 1892, his last in 1976. ?

In what key did Franz Liszt write the beautiful Liebestraum #3 ?