Diptych delves into the intricate nuances of duality. This duality is expressed through the interaction of the musicians – Ï Π(Lukas De Clerck and Victor Guaita Igual) and Sarah Davachi – and in the distinct functions of the aulos’ two independent pipes, serving as both a chanter and drone. In addition to accentuating inherent dualities within the performance environment, composer Sarah Davachi focuses on the role of the viola. This instrument provides a foundational structure characterised by shifting dyads throughout the composition. Given the challenges of precise tuning in the aulos’ frequency spectrum, a broader application of microtonality is incorporated. This approach enables the two performers to dynamically navigate moments of perceived consonance and dissonance in real time, challenging conventional interpretations of these terms in the context of harmonic relationships.