The Estonian Song Festival (Laulupidu) gathers tens of thousands of singers in folk costume beneath the great parabolic concrete shell of Tallinn's Lauluväljak — a tradition carried across the Soviet decades into national independence. The defining image is the bare weathered-grey arch under open daylight, filled with dark costume and white linen.
This design system distills that civic spectacle: a restrained blue-black-white tricolour anchored on stone-grey concrete, the parabolic arch as governing curve, and broad horizontal banding that echoes massed-choir rhythm and the lines of the Estonian flag.
爱沙尼亚歌唱节（Laulupidu）汇聚数万名身着民族服饰的歌者，齐聚于塔林歌唱广场那座宏伟的抛物线混凝土拱壳之下——这一传统穿越苏联时代，延续至民族独立。最具标志性的画面，是天光之下那道斑驳的灰色拱壳，其间填满深色民族服饰与白色亚麻衣衫。
本设计系统提炼了这一公民盛典：以风化的石灰色混凝土为底，铺陈克制的蓝—黑—白三色旗配色；以抛物线拱形作为统领全局的曲线，以宽阔的水平条带呼应万人合唱的节律与爱沙尼亚国旗的横纹。