Today is the traditional date for the Visitation in the Western Church, commemorating the visit of the Holy Virgin to Elizabeth, and thus the occasion for Magnificat, the Blessed Virgin's hymn of praise, which we sing at Vespers: "My soul magnifies the Lord and my spirit rejoices in God my Savior!" Our prayer this day is that receiving God's Word in humility and faith, we may "be made one with Jesus Christ." (Collect)
One of the things that folks will either decry our celebrate about LSB is that it does not proclaim a unified calendar for our Synod but offers, in the use of two lectionary systems, two calendars. True, for all the major days the calendars are completely in sync. But there are variations: Transfiguration falls three weeks later if you use the three-year lectionary and calendar and epiphany is extended, swallowing up what the one-year celebrates as Pre-Lent. And then there is the variation on Visitation. If you follow the three-year, you will observe this feast on May 31. If you follow the one-year, it is observed today.
As I've said elsewhere, it is a choice of pre-Vatican or post-Vatican II. Odd as it may be, that is clearly the origin. Pre-Vatican II had both Pre-Lent and a celebration of the Visitiation on July 2. After the council, Pre-Lent disappeared and Visitation migrated to a date before the celebration of St. John's Nativity. Yes, that makes sense (how could the Blessed Virgin visit a pregnant Elizabeth AFTER John was born? We celebrated his Nativity last week!), but the Church's calendar has never made sense that way. It doesn't seek over all to match things up historically, but to celebrate on different days the mysteries of our faith. [Note that both pre and post Council the celebration of Transfiguration in Rome - as also in Swedish Lutheranism and Orthodoxy - is August 6th].
In putting forward such an approach, we see in LSB the refusal to take either the pre or the post council forms as normative; recognizing value in both, both are set on entirely equal footing (something that the previous *Lutheran Worship* did not do). I suspect it's a wise approach for the present. The day may possibly come when it's all unified once again. And probably whatever Rome does in regard to the restoration of the old Latin Mass and its lectionary and calendar will have more effect than most Lutherans (or Romans) would be willing to recognize. "When Rome catches a cold..."