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Banger AI

Built at Meta Global AI Developer Hackathon · Oct 26, 2026 · Remote

Banger AI — Demo video

Banger is an AI song studio that turns ideas into playable, editable songs. Unlike other AI Music generators, Banger gives users AI generated instrumentals while maintaining fine control over the composition before adding vocals to the mix. Arrangements are written in .banger which is a custom file type that allows our AI harness to seamlessly generate musical code, our compiler to validate, and our UI to display in a variety of ways. On desktop, banger works just like a local coding agent allowing users to edit files and access tools. On the web, agents run in sandboxed environments to run music gen tasks. Playback works with the custom chrome engine that can play the audio without rendering a common audio file. Our agent can help the user write song lyrics and arrange them into the different sections. Once a user is satisfied with their instrumentals and lyrics, they can generate a .wav file and send it to ElevenLabs so that vocals can be inpainted onto their music. Users access all their music in the library, where they can play, sing along to lyrics, watch 3D Muse characters play along their beats, and join along in our Muse Hero minigame.

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