The songs bucket of the artist API seems to return many duplicate entries. Using the docs example, the first 3 results are all for "Creep": http://developer.echonest.com/api/v4/artist/songs?api_key=API_KEY&id=ARH6W4X1187B99274F&format=json&start=0&results=10
Is there any way to have the songs bucket only return unique title results?
