One of the great things about iTunes is creating the perfect playlist. And if you have a lot of playlists in your music collection it can be hard to remember which is which. My wife was trying to find a playlist and could only remember that it had this one specific song in it. So she did what all of us do and searched for the song. ... No dice.
She poking and prodding she turned to me and said "This is horrible! Why can't they make it simple to list out all the playlists that have a specific song in it?" We tried asking Siri and she just got confused. The answer is a keystroke away.
Bring up iTunes, select your music library and search for a song.
Hold down the "Control" key and click on the song. Near the bottom of the list you should see "Show in Playlist." Click on it and it will show you all the playlists your selected song is in.
Let me know some of your iTunes gripes in the comments below. Who knows? Maybe there's a simple solution.