Display and change ratings in iTunes Mini Player

Create a smart playlist in iTunes with criteria set to all of

• is Music
• rated less than 1 star
• play count greater than whatever count you want

Check “update automatically”. Make sure the contents conform to the list of songs you want to rate automatically. Name it “Unrated Songs” (or similar).

Now create the following AppleScript:

tell application "iTunes"
    set unratedSongs to tracks in (playlist "Unrated Songs")
    repeat with unratedSong in unratedSongs
        set rating of unratedSong to 60
    end repeat
end tell

Save it to ~/Library/Scripts/Applications/iTunes (creating the folders that do not exist yet – note ~/Library is hidden under Lion: use the Finder’s “Go To” menu while pressing Option to get to it or press Cmd+Shift+. in the Save dialog to show hidden folders) as “Rate unrated songs”. You will find the script in iTunes’ script menu, ready to do your bidding.

I'll check my computer when I get home, but everytime I update the ratings on my iPhone there is definitely network activity (The network spinner is displayed everytime I change the rating). So it is definitely updating the iTunes Match library. Whether it updates the PC at home I'll have to see.

I'm still waiting for it to upload about 600 songs.

Edit: I confirmed that ratings and play count definitely are updated right away. PC to device changes take a little longer. I had one song disappear from my phone on my way to work because I accidentally removed it from match the night before and it took some time to propagate.