This osascript gets and returns the meta data of the track that is currently playing in Spotify on Mac OS X.

now_playing.osascript

#!/usr/bin/osascript
#
# now_playing.osascript
#
# Osascript to fetch the meta data of the currently playing
# track in Spotify. This works only on Mac OS X.

tell application "System Events"
  set myList to (name of every process)
end tell
if myList contains "Spotify" then
  tell application "Spotify"
    if player state is stopped then
      set output to "Stopped"
    else
      set trackname to name of current track
      set artistname to artist of current track
      set albumname to album of current track
      if player state is playing then
        set output to trackname & " | " & artistname & " | " & albumname & " | " & "Playing"
      else if player state is paused then
        set output to trackname & " | " & artistname & " | " & albumname & " | " & "Paused"
      end if
    end if
  end tell
else
  set output to "Spotify not running"
end if