Well, a highly-knowledgable and hardly-doubtable expert in the field of music (that would be my dad) informed me that . . . posh, tosh, this ut stuff is old news! They have a name - solfege syllables, and were used by a guy named Guido of Arezzo to teach musically illiterate monks to sing the Gregorian chants. Then he invented the Guidonian Hand as a teaching aid.
The Guidonian Hand is based on hexachords (six instead of a scale of eight). So the te was actually not included because it was the seventh. And you have to break up the Sanc-te to get it anyway. And te is actually a different solfege note, half a step lower than ti. Not sure where ti came from. WHEW!
Here are the Latin lyrics for your further consideration.
Ut queant laxis
Labii reatum, Sanc
It actually means: "So that these your servants may, with all their voice, resound your marvelous exploits, clean the guilt from our stained lips, O Saint John. "
And that is probably a good place to stop for now. Your comments are welcome.