After successful EP Collapsed, the Bristol-based project Emptyset strikes back with a full-length album on Raster-Noton. Once more James Ginzburg and Paul Purgas challenge the perceptual boundaries between noise and music and the potential for both technology and architecture to embed and codify themselves within sound. Recur is presented as Emptyset's third studio album -- continuing on from their work with Demiurge, the material examines the central themes of time, structure and recursion, through the analysis of scale and the interaction of both formal and fractured sonics. The album furthers the project's exploration of rhythm, dislocation and feedback within the framework of full frequency sound, structural abstraction and analog processing. The work examines how notions of time interact with both experience and form, and the resulting modes through which this affects sound through compression and rarefaction and the forcing of signal thresholds to their critical point.