Grow a Song: my run wrote its own soundtrack, with Gemma running on my phone
This is a submission for the Hacktoberfest Open-Source AI Challenge, Week 1: Touch Grass . What I Built On Friday morning I went for a 35 minute run. When I started, my song was a single low drone. By the time I got back it had pads, a bass line, drums, a kalimba melody, and ten seconds of the actual street I ran down mixed in underneath. Grow a Song turns time outside into music. Every minute…
On a Friday morning, a user embarked on a 35-minute run with the app "Grow a Song" running on their iPhone 13 Pro. As they began the run, the song started as a single low drone. By the time they returned, the song had evolved to include pads, a bass line, drums, a kalimba melody, and a 10-second clip of the street they ran down.
The app, called Grow a Song, transforms time spent outdoors into music, adding a layer to the track for every minute of daylight activity. The app uses Gemma 3.1B, an open-weight model, to compose the song based on various factors such as the time of day, sun's height, activity duration, and the total minutes spent outside this week.
The app works without an account or server and functions in airplane mode after a one-time model download.
Written by urgent.news from Dev.to's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
