While I've never had a problem with the Rebirth soundtrack, I much prefer Danny Baranowsky's score of the original game. Mudeth's work here captures that same magic. Beautiful, haunting, and powerful, it feels so perfect for the Binding of Isaac. It is a terrific part of a remarkable tribute to Rebirth.
It is difficult to pick a favorite track, as the whole thing is excellent. "Forgotten Lullaby," in particular, with its nod to "Sacrificial," from the original game (which still puts a shiver up me, every time I hear it), stands out, as do "Hallowed Ground" and "Machine in the Walls." However, it's "Innocence Glitched" that I find myself listening to, over and over again.