Automated music composition based on classic novels

I like the approach taken here: using trained sentiment analysis, analyze the text of a novel to compose a piece that matches the feeling of the novel. Recognizing the feeling in a text is fairly easy: the frequency of particular words will give you a pretty good estimate. Generating that feeling with an automated composition is more difficult because we don't understand melody generation as well. Another thing you could do is analyze the period and setting of the novel, and use elements of musical style from that setting. This is clearly a first effort and the musical pieces aren't very convincing (they include a disclaimer to that effect.)

http://singularityhub.com/2014/05/27/software-composes-music-inspired-by-classic-novels/