Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Queen's Underrated Masterpiece

This album was a fantastic record when it was released in '74, and it stands up today as my favorite Queen release. Side One is dominated by guitarist Brian May's songs, including the magnificent "Father To Son". May's guitar work throughout is inventive and rich, layering acoustic guitar over electric tracks brilliantly. Side Two kicks off with "Ogre Battle" and begins a great stretch of four linked tracks ("The Fairy-Feller's Master Stroke", "Nevermore" and "March of the Black Queen") that rank with any album side in British rock history. Superb harmonies, classic bombast, Phil Spector meets Black Sabbath production - all in all, a tremendous achievement that was never matched in consistency by any of the band's subsequent releases.