SOPP774: I got an email on notifying me that the processional and recessional hymns had been changed

Welcome to Secrets of Organ Playing Podcast No. 774! Today's question was sent by Julie who is a member of our Total Organist community and she writes:

I was pleased that I was given Sunday’s hymns a couple of weeks in advance, which helps with planning preludes and postludes, but I got an email on Thursday notifying me that the processional and recessional hymns had been changed. (Sometimes the pastor will make changes if he thinks the text of a hymn fits better with his sermon.) So since according to the email the first hymn was going to use the tune “Erhalt uns Herr, bei deinem Wort“ instead, I practiced three different settings of it on Friday, only to find out on Saturday that there was a typo in the hymn number and the first hymn will actually use the tune “Herr Jesu Christ, dich zu uns wend.” So I practiced a couple of preludes based on that by Georg Böhm and Gerald Near, along with preludes by Pachelbel on “Es woll uns Gott gnädig sein” and a Buxtehude Praeludium which I will use as a postlude (BuxWV 147 in G major, one of the shorter, easier ones). I may start the prelude music early and use one or two of the preludes on “Erhalt uns, Herr” anyway.