There are new hymns. Will these be difficult to learn?

The traditional hymnody of the Church has been restored in its entirety. Nearly 300 hymns, including compositions by giants of the early Church such as Saint Ambrose and Saint Hilary, now appear in the Liturgy of the Hours. Assigned appropriate spots based on the feast day, season, or specific hour, these hymns are conveniently located near the corresponding prayer. Hymns are set predominantly in common, accessible tunes, allowing them to be sung without mastering hundreds of unique melodies.