Number 124 of the recently (re-)discussed Cantus Selecti consists of three hymns whose verses summarize each mystery of the (15-decade) Rosary:
Caelestis aulae nuntius: Joyful
In monte Olivis consito: Sorrowful
Iam morte victor obruta: Glorious
According to DivinumOfficium.com, in the 1962 edition of the Divine Office the verses pertaining to the Joyful and Sorrowful Mysteries are assigned to Matins of Oct. 7: the Feast of the Holy Rosary, while the verses of the Glorious Mysteries are assigned to Lauds. (According to the same source, when the feast had a First Vespers the verses of the Joyful Mysteries were assigned to that hour.)
Preces-Latinae.org, which has English paraphrases of the above (as well as the Second Vespers hymn whose verses summarize all three sets of mysteries) credits a Fr. Augustine Thomas Ricchini (1695-1779) with authorship of the hymn. But Cantus Selecti credits it to Dominican Fr. Eustachius Sirena († 1758).
Regardless of authorship, these hymns (and their English paraphrases) seem well-suited for public recitations of the Rosary that employ singing, e.g., a verse could announce a particular mystery.
My memory fails me, but I think we end each set of mysteries with these hymns, sort of summarizing everything. I’ll have to check our handouts to be sure, though.
Of course the online versions of the Liber have 3 of the Hymns, the Dominican books have all the hymns but not set in full. I think the Modern notation Liber will have modern notation for all but the Matins Hymn.
We are doing the 15 across a pilgrimage of 15km (technically it's 21 but we will sing other chaplets during that time.) Start with mass and end with vespers and the same statement comes up in sivinum officium for that also. I'd be curious to know also. Good question!
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