In playing with the software again this afternoon, just to familiarize myself with it more, I scored Tamtum Ergo from scratch. I did have my user guide and notes from my meeting with Joseph handy, but didn't need to refer to them all that much. (That, and the CTRL + Z undo shortcut was ready at hand.)
The one thing I'm still trying to figure out, and might need to call more expert help on, is how to get rid of the annoying indentation in front of the first measure.
Liturgical (Musician) Nerd status is almost achieved.