Show HN: Visualization of Chopin 2025 competition ratings (marcindulak.github.io)

Interactive, browser-only timeline and heatmap views of jury ratings. Designed to support any multi-stage, juried competition, but currently includes only the 2025 Chopin Competition. Runs client-side with no external API calls.

GitHub repository: https://github.com/marcindulak/competition-rating-visualizat...