The Church has four hymns dedicated to Our Blessed Mother, asking for her intercession, that correspond to the season and are known as the Marian antiphons. From Compline tonight (following of course 1st Vespers of the 1st Sunday of Advent) through Compline on February 1 the Church recommends singing the Alma Redemptoris Mater.
Here is the simple tone version. It's particularly nice to sing at the end of Mass and other special liturgies (processions, etc.) and the Divine Office on less solemn occasions. He who has not Mary for his mother has not God for his Father. Mary is the dwelling place of God, the New Temple, the New Ark of the Covenant. We must be taken to her to enter into the presence of Our Lord. Thus, we must honor her and since singing belongs to one who loves, there is no better way to honor her. I don't know about you, but I affectionately call her Mama!
I need to do more pondering on the Incarnation, Our Lady, and the sacred liturgy of the Church. Look for some posts on this.
The music for the simple tone and the solemn tone can be found here and here. Rorate Caeli has a good translation of three of the antiphons, and it has the collects and versicles for each. I found that one can print the PDF first, then flip the paper to print the collect and versicle on the reverse (a test print to figure out the direction of the reverse side might be handy).