Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Fantastic, but hard to understand

It's cool. It's hard. It's nebulous. Like our life, like our death, like full Moon in the shadows and like alone man in the twilight.Try it. And your mind will derelict your head. Maybe for 1 hour, 1 day, 1 month, 1 millenia... I don't now. But this music is truly spell, fire spell, water spell... I want you to forget me, just listen. Bye.