sebastianwolff

So, who will come along and provide an alternative to the likely hundreds of competing streaming stores/platforms that would likely prefer Spotify not to have their data? Would a crowd-funded music tagging system in the style of Pandora's Music Genome Project have any chance of success?

Nope, though you may be interested in David Cope and Experiments in Musical Intelligence. Input Bach MIDIs, receive 500 compositions in the style of Bach. Turing complete.

Echo Nest has a few other fun features, like danceability, mood, tempo, and others. An API playground, too, for now.