music: 70's Chart Toppers: Name The Artist: Sooner Or Later?

Questions

Two composers who concentrated on writing opera were both bornin 1813. Who were they?

Who wrote the Rage Over a Lost Penny?

What does piano really mean in Italian?

Who wrote the most piano sonatas?

Who came up with the nickname "Moonlight" for Beethoven's pianoSonata No. 14 in C-sharp minor Op. 27 No. 2?