Get current playing track from Spotify

SpotifyNowPlaying.scpt

# https://github.com/dronir/SpotifyControl/issues/2#issuecomment-8686456
tell application "Spotify"
	set theTrack to current track
	set theArtist to artist of theTrack
	set theName to name of theTrack
	set theCover to artwork url of theTrack
	return theArtist & "|" & theName & "|" & theCover
end tell