I just found this article about the MOTS system and the company that created it on the homepage of the ORF (state owned austrian TV/Radio broadcasting company):

http://futurezone.orf.at/stories/1608825/

Sadly the article is in german... It shortly explains the way the systems works compared and the differences to pandora/genius.

Foxtrott

P.S.: I wasn't sure where to post... BS5 (related to BS5) or general forum (not entirely about BS5)... so moderators feel free to move this post. 

Since MOTS is an A.I. effort to understand music, it is only appropriate that one should use yet another A.I. to try and understand the German text from the article:

http://translate.google.com/translate?hl=en&sl=de&tl=en&u=http%3A%2F%2Ffuturezone.orf.at%2Fstories%2F1608825