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aria

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

aria — Demo video

Aria is an AI co producer that runs inside Ableton Live, on the Main track. Most producers can make a drop long before they can tell why it sounds muddy next to the songs they love. Their options are an engineer, a course, or guessing with plugins. Aria records 16 bars of your song and finds the sounds that clash or stick out, and exactly where: which sound, which frequency range, which bars. Meta's Muse Spark explains each problem in plain words and makes the fix with Live's own devices, with Undo. Then Aria plays the same bars again at the same loudness to prove the fix worked. Our mix model was trained on 99 mixes our testers rated good or bad. It shows where your mix lands against the good ones and what would move it closer. Aria never makes up numbers. If it can't measure something, it says so.

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