Zachary quickly found music and lyrics, printed copies, recruited his brothers to join the chorus, and set a 7AM meeting time with another voice to rehearse. Motivated! His dreams of forming a Gregorian Chant chorus may yet come to pass. (Maybe even before his Eagle Project gets city approval and a building permit!)
I "caught" them in the act of rehearsing the Latin chant tonight, and was scolded for (not so) secretly recording their practice session. Even so, it was too sweet not to share, sorry boys!