Whether it’s from swooning crooners or heartbroken honky-tonkers, love has wedged itself prominently in the American songbook. We talk to two songwriters who specialize in matters of the heart: ’60s folk chanteuse Judy Collins and Americana songmaker Jim Lauderdale, a.k.a. “The King of Broken Hearts.” Plus we hear soulful sweet songs from the Pointer Sisters and the Four Tops, ballads of love on the rocks from George Jones and Tracy Chapman, and love confessions for “My Girl, Josephine” by Fats Domino and “Ophelia” by The Band. Join us for songs of love sad and happy, sexy and silly, careless and calculated on American Routes.