Beginning with the sound of a tolling bell, Sarah Davachi’sTwo Sisters (Chamber Music For Consorts in Yellow, Green & Bronze) is probably not a record to be played at your average dinner party. The LA based sound artist inhabits an area at the opposite end of the ambient spectrum to lighter, more frivolous records such as Mother Earth's Plantasia. Sarah Davachi’s long immersive pieces explore drones and harmonics, and over the nine tracks on this double LP she applies her compositional skills to the carillon, voices, pipe organs, a string quartet, trombones and woodwind. Sarah Davachi is what may be called a ‘serious’ artist – not that most artists aren’t serious about their work – but because the music she creates is deep and solemn with a Gothic baroque air that some would describe as neo-classical. These pieces are like incantations that draw the adventurous listener in. What may initially sound dull and boring, on deeper listen reveals a micro world of harmonics, overtones and subharmonic undertones that create a remarkable sonic universe. She employs techniques that have been around for hundreds of years, yet her ingenuity makes her music modern and adventurous. The music on Two Sisters is unusual in that, while containing music that references Gregorian chant, it could still fit comfortably on the bill at a cutting-edge contemporary sound festival. Davachi is a trained academic with a master's degree in electronic music, and the 20 page booklet that comes with this record explains in detail, for those who understand music theory, the non-equal tuning systems used for each of her compositions. Touches like this illustrate how her music can appeal to fans of theory, minimalism and ambient music all in equal measure.