Valentina often talks about reading the letters that inspired the composers to write certain songs, and she sites the mood, and etc. I think the interview I was watching, she was talking about Chopin, and one of his pieces.
I've been searching for the inspiration behind certain pieces. I was able to find something about Beethoven and his inspiration behind Moonlight Sonata, (if I remember right, he was writing about his girlfriend or fiance).
If there are any good links that describe the inspiration behind the composition, please do share.
I for the most part have only found generalities, (ie, Chopin devoted Minute Waltz to his girlfriend), but nothing passionate that would tell the story of the piece.