See title. I am adding notes to our Benediction materials, because I think that this would be nifty. We mostly use Solesmes chant (Cantus Selecti, the Liber Usualis, etc.) and non-Solesmes things (the mode VI Adoremus from the Westminster hymnal in Advent and in Lent, for example). At Vespers per annum, we use the mode V Adoremus known to so many, but the note in Cantus Selecti is a bit of a dead end. "Cfr. Revue du chant grégorien, 1895 – 1896, p. 45 ; Sept. Oct. 1910, p. 27" is given with no author or editor, whereas they normally weren't shy about their own interventions…