It falls into the "theme and variations" genre. There is a simple, hymn-like playing of the theme, followed by a number of variations.
This is a live recording, with coughs and a few mistakes thrown in for good measure. Otherwise, it would sound canned ;) Ten Table Talk Radio points to the person who can identify the word that is spoken at the very end of the recording. It's probably in Dutch.
Southern Lutheran Kantor: the first variation is for you! I think you could rock it out on the Mighty Capra.
Mom and Dad: stanza 3 below is for you! I think we all turned out OK.
Oh, blest the parents who give heed
Oh, blest the house, it prospers well,
Then here will I and mine today