I am really pleased that the powers that be opted to include an upgraded transfer of the original theatrical version. I've always had a soft spot for Carmine Coppola's moody, stringy score.
I assume by "new music" you mean "new-er music," the rock score Coppola used as a substitute for Carmine's lush (sometimes overly lush) orchestral score many years back for the first Blu-ray. I happen to think his father's original score is very atmospheric and gives it some weight that was...