Yes, there is a mode 6 tune in the 1930 Plainsong for Schools, p.72. That has 28 notes per verse, while what I remember from my 1940s childhood had even fewer, one per syllable (24), but that doesn't sound like chant.
The mode I tone indicated for in Sabbato is really nice. It is essentially a simplex version of the original tone that is used indifferently (and most often) in the Roman rite and for solemn/major feasts according to the monastic antiphonal.
This mode I version for Memorials seems relatively straightforward, in the sense that it's less melismatic and more like many other Latin hymns for for that reason; it seems to be the same as the tone for the Officium Parvum and in Sabbato (rather than the mode 1, mode 4, and mode 7 tones set forth in pp 1259-1263 of the Liber Usualis)- or maybe I am missing something.
Right that is the one that I mentioned. Fontgombault reassigned it to lesser feasts of the Virgin as Vespers of the Saturday office haven’t existed since the 1960 reforms (1963 for the OSB).
Although Vespers of even simple feasts could otherwise be observed with the Liber Usualis, it does not include the Saturday office, probably due to its infrequent occurrence as a standalone office, and if you need to commemorate it, you have a breviary and antiphonal.
To participate in the discussions on Catholic church music, sign in or register as a forum member, The forum is a project of the Church Music Association of America.