Sight singing Gregorian Chant - Laudate Dominum

Day 31 of #100daysofchant
Using my random chant script which you can find in this blog post:
https://www.brandt.id.au/post/hundreddaysofchant/
I randomly selected this piece:
https://gregobase.selapa.net/chant.php?id=12229
and had a go at singing it.