Noumen returns to Central Processing Unit after a six-year absence with Altum. This bumper record, the Ukrainian artist’s fourth release for the Sheffield label and first since 2019 double-LP Obscurium, serves to remind us all why Noumen’s music has been lauded by the likes of Mixmag and Resident Advisor in the past. Altum is a consummate piece of contemporary electronic production, a technoid exploration of outer-edges electronica that nods to genre greats like Autechre while still maintaining its own unconventional charm.