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    copied!<p>As far as I know, Apple provides a free (as in zero-cost) <a href="http://developer.apple.com/sdk/" rel="nofollow noreferrer">SDK</a> for <code>iTunes</code> Visual Plug-Ins for both OS X and Windows. If you can't get what you need through that, you <em>could</em> always use iTunes Apple Events scripting interface to monitor via polling from another OS X app using an OSA-compatible interface such as AppleScript or <a href="http://appscript.sourceforge.net/" rel="nofollow noreferrer">appscript</a> with Python, Ruby, or Objective-C. That may not be what you'd like but it is documented and supported.</p> <p>For example, with py-appscript, here's how to access the current track and the those in the recently played smartlist:</p> <pre><code>&gt;&gt;&gt; from appscript import * &gt;&gt;&gt; it = app('iTunes') &gt;&gt;&gt; it.current_track.rating() # 40 == 2 stars 40 &gt;&gt;&gt; len(it.playlists['Recently Played'].tracks()) 80 &gt;&gt;&gt; it.playlists['Recently Played'].tracks[1].rating() 40 &gt;&gt;&gt; it.playlists['Recently Played'].tracks[1].rating.set(to=100) &gt;&gt;&gt; it.playlists['Recently Played'].tracks[1].rating() # 100 = 5 stars 100 </code></pre> <p>It's also possible to filter on various metadata fields (open the iTunes.app scripting definition in the AppleScript Script Editor to browse):</p> <pre><code>&gt;&gt;&gt; import datetime &gt;&gt;&gt; an_hour_ago = datetime.datetime.now() - datetime.timedelta(hours=1) &gt;&gt;&gt; it.playlists['Library'].tracks[its.modification_date &gt;= an_hour_ago]() [app(u'/Applications/iTunes.app').sources.ID(45).library_playlists.ID(49347).file_tracks.ID(72017)] </code></pre> <p>But note that changes to ratings do not appear to affect the modification date.</p>
 

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