Billy Joel is my favorite musical artist, and odds are most people haven't heard of one of my favorite songs of his. It's not "We Didn't Start the Fire" (though I've completed the song many times at karaoke night without glancing at the lyrics once), it's not "Uptown Girl" or "Just the Way You Are." It's a song that Billy himself often describes as "manic-depressive" - "Summer, Highland Falls."