MEEEEEEN!
That was a pretty great ep, i actually got a few goosebumps when Natsu broke out of the "underworld" place and punched Zero in the face with awesome background music ;D
And when Richard was told that his brother was happy and safe by Erza, i got a little emotional, which actually surprised me because i don't really care that much about his character lol, however i'm guessing most of the emotion came from the music, they use the music to add extra emotion/emphasis to moments in this show perfectly ^^