Lovers of the reductionist approach to improvisation will maybe adore this session that Ernesto Rodrigues (viola), Axel Doerner (trumpet), Nuno Torres (alto saxophone) and Alexander Frangenheim (double bass) recorded on 2nd May 2014 at Studioboerne45 in Berlin. They aptly titled it as NOR, the negation of logical OR in Boolean logic, which produces a value of 'true' (1) if and only if both operands are 'false' (0). If your mind chew these subjects as your eardrums chew reductionism, you will easily understand that this matching makes sense as well as the cover artwork: maybe it's not easy to see on the low-resolution image I'm attaching to this review, but there's a picture of the moon covered by nocturnal clouds inside that circle surrounded by a plain black field, as it seems that the Apollo Guidance Computer (if not engineered by Kubrick...), which supposedly brought man on the moon, was entirely based on NOR logical gates and three inputs. The 'false' or 0 operands are the instruments (two winds and two chords) in this session, as you can imagine: all of them are not played in a conventional way, so that you won't easily guess who is "playing" what, but the first to break what could be labelled as 'silence' and some sparse particles of sound in this silent colloidal suspension is Frangenheim's double bass, the most "silenced" voice in the first 21-minutes lasting of the three improv sessions you'll find in this release. The shortest session ('just' 13 minutes) is faithful to the same approach, but its general sonority could be thought as a wicked version of a soundtrack for a documentary focusing on the supposed moon-landing, and some sci-fi nuances get evoked by the brutalized winds in the third session, even if this one features more frequent of alternations between 'empty' and 'chaotic' moments than the second one.