Reply To: JoCo Concert Stats 2008
Short version:
“Add a Show” uses preloading so that the new page is created with the contents of the given page already included, the given page being User:Bry/Shows template helper.
The Helper contains a subst call to User:Bry/Shows template, which, given inputs for the city, venue, supporting act, and guest, fills out the top part properly.
The bottom of the Helper contains the boilerplate for the setlist, notes, etc.
I’m not sure what else to say. I might be able to help if I had a better idea what, specifically, was confusing. Try and create a new page using “Add a Show” and fill out random values for “city”, “venue”, etc., save the page and view the source.