This Major Research Project explores time as a design medium in interiors, with a focus on cultural heritage and intangible traditions. Taking the Festival Stage of Gjirokastër Castle (home of the Albanian National Folklore Festival), as its site, the research translates the temporal structure of iso-polyphony into a spatial installation.

The methodology combines site analysis, diagrammatic thinking, sound-to-design translation and precedent study, supported by material and light-shadow experimentation. The four voices of iso-polyphony were abstracted into graphic forms and materialized as four suspended discs.

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These discs interact with sunlight to project shifting, overlapping shadows, functioning as temporal diagrams that mirror the cyclical rhythms of the music. The installation, Singing Shadows of Time, situates a contemporary intervention within the layered historic fabric of Gjirokastër Castle. By transforming intangible sound into light, shadow and interaction, it bridges tradition and innovation while inviting visitors to participate in a temporal experience that changes throughout the day.