Now that Echonest is a part of Spotify, can we expect better coverage of the Spotify catalogue anytime soon? I've noticed the following:
- most new tracks give the "The Identifier specified does not exist" response
- year-old tracks have metadata but audio_summary is empty
- older tracks have analysis, but sometimes the sync is way off, up to 3 seconds (could be because Spotify have replaced the audio file?). I'm using synchstring for this now though, and it seems to work.