How does Weather Music turn a forecast into a song?

Every bar of the piece is mapped to a slice of the forecast. Temperature moves tempo and the visual palette, sky and daylight weight major, minor and modal chord choices, rain and snow change accents and articulation, wind adds syncopation and fills, and humidity controls sustain and room depth. The forecast steers a composition system that already understands meter, harmony, melody and form, so the result is a structured piece rather than random notes.

Is this real generated music or a playlist of existing songs?

It is real generated music. Most weather music tools build a Spotify or Apple Music playlist of tracks somebody else recorded. Weather Music writes an original piece for your forecast, note by note, in your browser, and can hand you the MIDI so you can keep working on it.

Do I need an account, a plugin, or a music subscription?

No. There is no account, no install and no subscription. Everything runs locally in your browser using the Web Audio API. The only network request is the forecast lookup from Open-Meteo.

Four formats. WAV gives you one complete loop rendered with your current mixer. MIDI gives you separate drums, bass, harmony, melody and weather tracks you can open in any DAW. JSON saves the seed, weather snapshot, controls and mixer so the exact piece can be restored later. PNG captures the score view currently on screen.

Will the same city and forecast always produce the same song?

Yes. The city, weather snapshot, controls and seed together reproduce the piece exactly, and a JSON export carries all four so it restores note for note. A share link works differently on purpose: it carries the place, the seed and your control settings but not the weather, so whoever opens it hears that city composed from the forecast happening right then. Press Remix to get a deliberately different piece from the same weather. A remix is rejected unless the themes, the accompaniment and the melodic form all change materially, so a key change alone never counts as a new song.

Can I choose the style instead of letting the weather pick?

Yes. Open the Mixer panel and pick a music type from the library, or leave it on Weather pick and let the forecast choose. You can also dial back how strongly the weather steers the arrangement, bias the tempo, change the energy, and set how much each weather factor contributes.

Where does the forecast data come from?

Open-Meteo, a free weather API. Weather Music sends a latitude and longitude to fetch a forecast and nothing else. No location history is stored on a server, and your composition never leaves your device unless you export or share it yourself.

What is the difference between the 24 hour and 7 day score?

The 24 hour score maps the coming day across the loop, so you hear dawn, afternoon and night as sections. The 7 day score stretches the available week into a longer form with broader contrast between sections. Both repeat exactly when the loop comes around.

Weather Music: Turn Any Forecast Into an Original Song

Weather Music

Music type Tempo Meter Harmony

Temperature—Tempo

Sky—Harmony

Rain / snow—Rhythm

Wind—Motion

Humidity—Space

Weather Music: turn any forecast into an original song

Weather Music