Cool! I thought it was an indication of sentiment at first, I was like oh yeah la la land gets sad towards the end. Cool endeavor!
Curious if you investigated other libraries or algorithms. have you seen this - i have been playing with it, seems reliable: https://github.com/cjhutto/vaderSentiment
Curious if you investigated other libraries or algorithms. have you seen this - i have been playing with it, seems reliable: https://github.com/cjhutto/vaderSentiment