I worried losing Tyler Koltz would be devastating to this album. If he had been replaced by anybody but Lou Kelly I think it would have been. Instead it's an unbelievable follow-up to an unbelievable debut. The changes and growth on Zon enhance how great Prologue is. The strength of Prologue served to elevate the ambition and artistry that went into Zon. This group has already put out two of the strongest albums of the last decade. If that were all, it would be enough. I hope we get even more.