Today is the 4th Sunday of Lent, "Laetare Sunday". Live mp3 of today's introit here, from the monks in Sao Paulo. Notation here. Translation:
"Rejoice O Jerusalem and come together, all ye that love her;rejoice for joy, all ye that have mourned: that ye may be glad, and be satisfied with the breasts of your consolation.
I was glad when they said unto me; We will go into the house of the Lord. "
( from Isiaiah 66: 10-11, and Psalm 121(122) )
Rest of today's propers here.
More about Laetare Sunday:
Old Catholic Encyclepedia: Laetare Sunday
What is Laetare Sunday? from About.com
Reflections on today's readings from Salvationhistory.com