New York-based duo andPlay – violinist Maya Bennardo and violist Hannah Levinson – present two extended works exploring the sonic possibilities of just intonation tuning systems. Both pieces were commissioned for andPlay's concert series Translucent Harmonies and premiered in 2018.

Catherine Lamb's Prisma Interius VIII (Melodic Duo) (22 minutes) strips her Prisma Interius series down to its bare essence, removing the electronic spectral resonance of earlier versions. Here, violin and viola plot a path through just intonation pitches that bleed into each other through superimposition and harmonic association, creating folkish traces grounded in guttural strings. Kristofer Svensson's Vid stenmuren blir tanken blomma (40 minutes) – Swedish for "By the stone wall, thought becomes flower" – takes a more contemplative approach, with the two instruments shadowing each other through brief melodic fragments held together by speculative silences. Over its substantial duration, an intuitive continuity emerges that is more felt than heard.

Boring Like A Drill/Xenharmonikon writes: "Lamb's piece returns strongly to folkish traces and simplicity of line, stripped of ethereality and artifice, grounded in guttural strings... Svensson's piece meanders with a roughness and casualness that makes the Lamb piece appear stuffy... The two instruments shadow each other warily, with melody or counterpoint to be more inferred than directly heard."

All About Jazz observes: "The violin and viola combination means that the soundscape can be quite spacious, but every note from each instrument is crystal clear even when the two instruments play simultaneously or overlap... All concerned merit credit for an absorbing and enthralling album."

Essential for admirers of La Monte Young, James Tenney, and microtonal exploration in chamber music.