Just as we sing zemiros to escort the Shabbos as it enters, we also do so as it departs - as one would escort a king's arrival and departure. In this sprit, many of Israel's greatest poets composed songs for the Melave Malka meal, which is held as Shabbos leaves and blends into the new week. It is brought down in Likutey Moharan II, Lesson 104 that Rebbe Nachman of Breslov was particularly emphatic about singing through the entire order of zemiros on Shabbos, including the "Fourth Meal." The melodies sung at the Breslover Melave Malka table are treasures of stirring beauty and soulfulness.