{"slug": "show-hn-generative-ambient-music-from-live-weather", "title": "Show HN: Generative ambient music from live weather", "summary": "A developer released a browser-based generative music instrument that synthesizes ambient audio live from Open-Meteo's real-time weather data for cities worldwide, mapping temperature to root key and tempo, cloud cover to major or minor modes, wind to hi-hat density and swing, humidity to overtone density, pressure to sub-bass weight, and precipitation to snare and bell activity. Each city's profile draws on named musical traditions, including Rebetiko and Aegean modal practice for Greece and Cyprus, Maqam Hijaz and Nihavend for Cairo and Istanbul, Fado minor for Lisbon, Gamelan slendro for Singapore, In and Akebono scales for Kyoto and Tokyo, Gnawa trance for Marrakesh, and Andean cumbia for Bogotá. The project synthesizes all sound in the browser via the Web Audio API with no downloaded audio files and is released under the MIT License.", "body_md": "## On Method\n\n        Every city on Earth reports live weather to\n        [Open-Meteo](https://open-meteo.com).\n        This instrument translates real-time conditions through the lens of each location's cultural and geographic musical heritage.\n      \n\n- Tradition\n- governs modal scales, voicings, bell timbres, and percussion\n- Temperature\n- selects root key, harmonic brightness, and base tempo\n- Cloud cover\n- selects major/bright or minor/modal emotional states\n- Wind\n- governs hi-hat density, swing, and rhythmic syncopation\n- Humidity\n- adds harmonic overtone density and melodic bell triggers\n- Pressure\n- sets the sub-bass weight and low-end resonance\n- Precipitation\n- increases snare, bell, and texture activity\n\nNo audio files or recordings are downloaded. Every sound is synthesized live in your browser using the Web Audio API with zero CPU dropouts.\n\n**On traditions.**\n        Each city's profile draws on specific musical traditions — Rebetiko and\n        Aegean modal practice (Greece, Cyprus), Maqam Hijaz and Nihavend (Cairo,\n        Istanbul), Fado minor (Lisbon), Gamelan slendro (Singapore), In and\n        Akebono scales (Kyoto, Tokyo), Gnawa trance (Marrakesh), and Andean\n        cumbia (Bogotá). These are interpretations, not authoritative\n        representations, and are offered with respect for the living traditions\n        they reference.\n      \n\n**On prior art.**\n        The translation of weather into sound has a long lineage — from Brian\n        Eno's generative systems to academic sonification work and independent\n        projects like *Weather Machine* and *Weather Score*.\n        This project is an independent interpretation, not affiliated with any\n        of them.\n      \n\n        Imagery: Esri World Imagery · OpenFreeMap 3D · OpenStreetMap contributors\n\n        Data: Open-Meteo · Geocoding: Nominatim\n\n        MIT License", "url": "https://wpnews.pro/news/show-hn-generative-ambient-music-from-live-weather", "canonical_source": "https://nowherern.vercel.app/", "published_at": "2026-09-29 10:02:28+00:00", "updated_at": "2026-09-29 10:18:28.180244+00:00", "lang": "en", "topics": ["generative-ai", "ai-tools", "developer-tools"], "entities": ["Open-Meteo", "Web Audio API", "OpenStreetMap", "Nominatim", "Esri World Imagery", "OpenFreeMap 3D", "Brian Eno"], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/show-hn-generative-ambient-music-from-live-weather", "markdown": "https://wpnews.pro/news/show-hn-generative-ambient-music-from-live-weather.md", "text": "https://wpnews.pro/news/show-hn-generative-ambient-music-from-live-weather.txt", "jsonld": "https://wpnews.pro/news/show-hn-generative-ambient-music-from-live-weather.jsonld"}}