I just made this so that I won't forget how to download playlists from the API thing. Also, I didn't know that the API even existed until now and I had to figure out the parameters.
download.rb downloads playlists. Also it seems like the API will close the
connection if the query is "too hard" (idk what constitutes too hard), so this
only downloads one day at a time.
thing.rb prints out the artist / album