From 2 February, the feast of Candlemas, until Easter, the Marian Anthem is the Ave Regina Caelorum. (From Easter Sunday, we sing the Regina Caeli.) In the parish, we sing the Marian Anthem after sung English or Latin Mass, on Friday after Benediction, on Saturday after the Novena to Our Lady of Perpetual Succour, and on any other occasion where it is a fitting conclusion to our prayers and devotions. In the above YouTube video, the anthem is sung by Christendom College Choir & Schola Gregoriana.
There are copies of the setting and translation available at the back of the Church and here is a link where you can download a copy of the music, text and translation if you wish.