Hey folks, thanks for bringing your feedback here to the idea exchange. In an effort to be more transparent about what we're planning on implementing, we're marking this idea for Alphabetizing Playlists as "Case Closed" today. While we are looking into how to organize large collections, it likely won't be implemented exactly as described here. Of course if anything changes around alphabetizing playlists we will let you know in the Community Blog via a Staff Announcement. Thanks for your understanding!