Building Surgify.ai: Music That Adapts to Your Workout (and Why I Built It)

Hey Indie Hackers!
I wanted to share a project I’ve been working on called Surgify.ai and the story behind it.

Like a lot of people who train regularly, music has always been a massive part of how I work out. But over time, I noticed something odd:

Even with carefully curated playlists, the music never quite matched how my body was actually feeling. Some days, I needed something calmer to stay consistent. Other days, I needed a push right now, not three songs later.

That disconnect is what led to Surgify.ai.

It generates workout music in real time based on:

• Your workout style

• Your preferences (energy, vibe, genre)

• Your heart-rate data during the session

Instead of picking static playlists, the music adapts as your workout evolves, adjusting to rising intensity, shifting energy, and kicking into recovery phases.

No licensed tracks, no repetitive loops, and everything is generated on the fly.

The app is currently in early beta. I am looking for testers for the platform. I currently have a small group of testers and am hoping to expand my testing base.

If you are a gym enthusiast or have similar problems, definitely give the app a go!

- Josiah Peterson