Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Amazing Album

I bought this album having not ever heard anything from ayreon and Im glad I did. It features some of the greatest vocalists on the proggressive scene today, and they all deliver an amazing performance on this concept double album. It has its soft and melodic moments, and it has its heavy and dark moments, both of which I enjoy. This is a must own for any proggressive metal fan.