Echo Nest must have developed cooties after Spotify bought it. Just days after Rdio said it would stop using the song recommendation provider to avoid sharing data with a rival, Rhapsody has announced that it's ramping down its own Echo Nest deal (which also applies to Napster) within several months. The company doesn't characterize the split as a defensive move, though. Instead, it's a chance to stand out. Rhapsody says it has "never been completely satisfied" with leaning on others for music personalization -- independence theoretically lets the company improve its advice to listeners. Whether or not things pan out as planned, it's clear that Echo Nest has lost at least some sway over the streaming radio industry.