Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Just An Excellent Album

I've recently dusted this one off and given it a listen. Frontiers achieves what very few albums from the early eighties manage--it stands the test of time. My personal favorites are the epic "Chain Reaction" and "Rubicon", the latter of which is a must if you're facing any period of change in your life. To the point, this is one of those rare albums that genuinely lifts the spirit through the mastery of music.