Laura and Mark Cetilia (on cello, analog modular and electronics) have been quietly producing a body of work in which consistency of purpose and spiritual strength seem to proceed in tandem. Recorded in a short time span during spring last year, Tetra represents their effort to create pieces “evocative of an extreme environment”, and this limited edition (300 copies in transparent vinyl) will definitely satisfy geared-up audiences through its morphological fusion of an acoustic (if heavily processed) instrument and its relative synthetic cumulus into a lone voice. It’s difficult to separate the components in this music whose droning gravity dissolves into steamy miasma and ruthless dissonance in compositions frequently steeped in inescapable brutality. Not only because of the near-identicalness of the album title with Roland Kayn’s Tektra, it occasionally recalls some of the late cyber-genius’s Pindaric flights in its most intangible figurations, particularly the imposing darkness of “Hræsvelgr”. Through speakers (highly recommended), clouds of distorted pitches and capricious upper partials will transform your room into a trap for ominous codes.