Only six manuscripts were digitized this week, three from Reg.gr, two from Capp.sist and one from Vat.ar. Despite this extremely small sample, it is interesting to see no manuscripts from the usual "large" fonds, nothing from Vat.lat or Barb.lat, Reg.lat or Ross.
To the right is f.56r from Cap.sist.10, one of the many Antiphonaria made for pope Leo X that are in the Sistine collection. The page starts with the change Sanctificavit dominus, a chant for the dedication of a new church.
The bottom line is from a Catena, or commentary, on the Psalms written in the 17th C. This particular line was found on f.19r of Reg.gr.39, and I believe is commentary on line 32 of Psalm 25