Marian hymns

I was delighted to hear -- and sing -- two favorite hymns at Mass for today's Holy Day:

"Sing of Mary" (pure and lowly) and "Hail, Holy Queen."

What Marian hymns did you hear? Which ones do you especially like?

Update: Yes, I understand that in many cases, no hymns, Marian or otherwise, were heard at today's Masses. What I meant to ask in the second question was "What Marian hymns do you especially like (regardless of whether you heard them on August 15 or not), and while you're at it, why? (Or, okay, why don't you like them?")