Applescript to open Get Info box for the previous iTunes track? I like having a hotkey to bring up the get info box for the current iTunes track so that if I'm using another app and a song comes up, I can quickly edit it.  This works (though if it's not the best way, please let me know):

tell application "iTunes"
    activate
    reveal current track
end tell
tell application "System Events"
    tell process "iTunes"
        key code 34 using command down
    end tell
end tell


I've assigned that a hotkey in BetterTouchTool and it's great.

I'd like to have a version of that script to edit the previous song...  but changing "current track" to "previous track" causes a completely different result.  iTunes goes back to play the previous track again even though I only told it to reveal it, and then I get an error saying applescript can't continue reveal.

tell application "iTunes"
    activate
    reveal (previous track)
end tell


What's the easiest way to get iTunes to show the previous track in a playlist using Applescript?
You can in a round about way using the "Recently Played" playlist. 

You configure it the way you want, I've set it to the 5 most recent items,  and then run this code...

tell application "iTunes"
    set rp to get playlist "Recently Played"
    #get name of every track of rp
    #get name of last track of rp
    #set tid to get id of last track of rp
    reveal track 5 of rp

    activate

    tell application "System Events"
        tell process "iTunes"
            key code 34 using command down
        end tell
    end tell        
end tell


Hope this helped.

EDIT: This only works with songs that are fully played. Partially played tracks will not show up in the "Recently Played".