With the release of Apple Music Radio, I've found the need for quickly checking the title and artist of the currently playing song in iTunes, even when I'm not in the app. I wrote an AppleScript to do that.
It can be assigned to a key in keyboard commander if desired. Here's the code, simply paste it into the script editor and save it where you keep your other scripts:
tell application "iTunes"
if player state is playing then
set myTrack to name of current track
set myArtist to artist of current track
tell application "VoiceOver" to say (myTrack & ", by " & myArtist)