Getting BPM To Appear In iTunes Playlists

When Traktor Pro 2 analyzes tracks it writes the BPM to each song files tags.  However when viewing iTunes playlists in Traktor it seems it just uses the iTunes library XML file for all its info so newly analyzed tracks don't show the BPM value Traktor calculated.  Tractor adds the BPM as a tag to the music file but it won't get written to the iTunes library until you do something like play the song to cause the played count to be incremented.  This can be solved with multiple songs by selecting the tracks in iTunes and doing an operation on them, such as setting their star rating, which causes the songs file tags to be written to the iTunes library XML file.  You can do this for lots of files at once by selecting them all, right click and set rating.