Today is the Vigil for tomorrow's feast of SS Simon and Jude. The rite is simple and the liturgical colour violet.
Mattins has three, proper, lessons. The second scheme of Lauds is used, the penitential form beginning with the psalm Miserere (actually the pre-1911 ferial Lauds). The ferial preces are sung, kneeling at Lauds and all the Hours. At Lauds the Suffrage of the Saints is sung.
Following the rules for Vigils four candles are placed on the altar and one cantor leads the choir. Mass is sung after None. The deacon and sub-deacon wear dalmatic and tunicle, not folded chasubles. The chant for the Mass is ferial, the second collect is Concede nos, and the third for the Church or pope. Being a 'kneeling day' all in choir kneel for the orations and from the Sanctus to the response after Pax Domini. As there is no Gloria , following the usual rule, Benedicamus Domino is the dismissal.
Vespers are first Vespers of the Holy Apostles SS Simon and Jude. The liturgical colour is red and the rite double.
In the 'liturgical books of 1962' there is no Vigil just a IV class 'green' ferial day with the Mass of the previous Sunday without Gloria but with Ite missa est. Mattins and the Hours are completely different. In the 1962 books this is the fifth week of October whilst in the old rite it is the fourth. There are of course no ferial preces. SS Simon and Jude don't even get a first Vespers so Vespers and Compline are ferial.