The images linked to the songs are quite nice, they fit in a good way. That is what I think is interesting, I wouldn't have thought that the approach could work. Neither the analysis of the lyrics nor the way of getting a flickr image via a search weighted by itnerestingness. I might adapt the flickr part, https://github.com/nurh/wallofsound/blob/master/wallofsound.... is really a lot easier than what I did instead.

You aren't by any chance interested in separating that, in hosting a server which gives a link to a good flickr image when given a word? I searched for something like that and in the end stayed with my ugly approach of parsing flickriver for getting a random image from a hard-coded group with a fitting topic.