Find a Track’s File Path 
Display a track’s file path without a lot of mouse-clicks and open windows.
Tracking down the location of a track’s file can lead to having a lot of Finder windows open, especially if you’re using the Show Song File command a lot. This hack adds a simple step: it displays the file path of the selected track or currently playing track in a dialog box. Then, going Get Info one better, you can choose to show the file in the Finder only, which saves a few mouse clicks.
The Code
This script will get the locationproperty of a single selected file
track or the currently playing file track and display it in a dialog box. Additionally, the dialog box
buttons will allow the user to choose to reveal the file in the
Finder:
tell application "iTunes"
-- routine to select single selected or playing track
if selection is not {} and¬
(kind of container of view of front window) is library then
set sel to item 1 of selection
set dd_message to "selected track"
else
if player state is not stopped then
set sel to current track
set dd_message to "playing track"
else
display dialog "Select a library track." buttons {"Cancel"}¬
default button 1 with icon 2 giving up after 15
end if
end if
-- get the location property of the track
if sel's class is file track and¬ sel's location is not missing value then try set the_file_path to sel's location on error errText display dialog errText ...