It would be nice to have the possibility to make SQL like queries on the whole Spotify library. Something like:
SELECT TOP 50 tracks
FROM Playlist1
WHERE ReleaseDate BETWEEN 2004 AND 2010
ORDER BY ReleaseDate DESC
SELECT TOP 10 tracks
FROM Artist1
WHERE BeatsPerMinute > 120
AND ReleaseDate > 2000
ORDER BY Popularity
And to save those queries as a playlist or something similar. So one could create dynamic playlists based on meta data.
You really should provide a Spotify Library Query Language SLQL. Where others ca build services depending on your solution.
