About the notation: Isolated vocal/consonant sounds are to be pronounced in the language used in the movement in question. "autem", "videns": Underlined consonant(s): "Sing on" them, without accent!
$ œ The tone is sung 1/4 tone (50 cent) sharper than notated.
B œ The tone is sung 1/4 tone (50 cent) flatter then notated. Kœ The tone is sung 1/6 tone (33 cent) flatter than notated.
Henrik Ødegaard, Årnes 07. 12. 2012.