Any Black Metal fan looking for something to listen to on a rainy day should look no further; there is plenty here to keep you engaged. All in all, Opus Nocturne is hands down one of Marduk's best albums and would make for a worthy addition to the collection of black metal fans everywhere. A different side of Marduk is seen here than on their other albums. In general, they put much more emphasis on trudging mid-paced sections and longer, more elaborate melodies than on their other works. The drums are still fairly straightforward and don?t break any of the rules. Generic beats are used to accompany the riffs in order to set them into motion appropriately, and in that sense they serve their purpose well. The bass carries the low end well, and even has a chance to carry a melody of its own in "Deme Quaden Thyrane"; a welcome deviation from what typifies black metal bass playing.