Instruct: Classify the given review as either positive or negative.
Query: a rocksolid album

tagged "Heavy Metal" or Hard Rock" is not always a recommendation, in every sense. This 1980 B.Ö.C. album is neither, released after "Mirrors" which adopted a softer style. Powerpop describes this band more, but on stage it is somewhat different the matter. This album is more guitar orientated and therefore sounds heavier, although there are keyboards present on several songs. The opener "Black Blade" is an eerie tale, with strange soundeffects, co-written with SF author Michael Moorcock. A solid rocksong. The next "Monsters" starts in the same vein but is interrupted by a jazzy part, complete with saxophone, which is repeated a few times but climaxes in the rockmode. This goes for the other songmaterial, more leaning towards hard rock but recognisable as B.Ö.C. songs. All in all a good album, which hasn't lost any of its impact almost 3 decades earlier. I still find pleasure in listening to it.