One square, a thousand rhythms

A single tile carries the whole language

One 15 cm square, one cobalt motif on white majolica — the alphabet is closed before any panel begins.

Rotation does the composing

Four orientations of the same module, shuffled by hand across the wall — no two panels repeat, none read as random.

The grid breaks its own regularity

Bulcão lays the field on a true grid, then displaces modules just enough to keep the eye from settling into wallpaper.

Cobalt and white, then the late colors

Blue-on-white is the core score; yellow and green arrive in later panels as grace notes, never as the ground.