So after being sort of underwhelmed by a lot of the music, I reached Shalour and for the first time in a while I got shivers from listening to the music. It sounds so dramatic and mystic, like something from Okami - I love it.
Seems like this is where things really start to get going. The Tower if Mastery also blew me away with its soundtrack and right now I'm just enjoying the excellent surfing music. Immensely glad that they brought back the graceful 3/4 time signature motif after Gen V's disappointing efforts.
I have listened to some of the music before hand and was Amazed at how wonderfully the music sounded. I of course am waiting to hear the E4 and Champion theme, Want it to be a surprise! Better be great like all the other themes are!
I've been really enjoying the music in these games so far. I like the title screen and bike themes a lot and spent some time just listening to them over and over. IMO, the wild Pokemon and trainer battle themes are also pretty good and sound very exciting. Lastly, I think many of the locations in Kalos have just beautiful music. Santalune Forest and Camphrier Town are a couple of favourites.