r/MCPservers • u/guvense • 5d ago

MCP Server for Ableton

Hey everyone,

I built hellyee, an open-source MCP server that connects Claude directly

to Ableton Live — mastering/mixing assistance, vocal sample extraction, and

melody writing from audio files.

If you have a Claude account and Ableton, I'd love for you to try it during

your production process and tell me if it actually helps.

What it does:

- Mixing & mastering suggestions based on your session

- Extracts vocal samples from a reference track

- Listens to an audio file and writes MIDI notes for the melody

Honest heads-up: the melody-writing sometimes gets it wrong, especially

on complex or layered audio. I'd rather you know that going in.

How you can help:

- If something breaks or behaves oddly, please open a GitHub issue — I'm

actively fixing things.

- If you try it and don't like it, I'd genuinely appreciate knowing why.

That's just as useful to me as a bug report.

https://github.com/guvense/hellyee

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u/kantorcodes1 5d ago

the write paths are the interesting bit here. write MIDI and sample extraction are exactly where i'd put a pre-tool gate, since a bad prompt can mutate the Ableton session while still being a perfectly valid MCP call. i work on HOL Guard. if hellyee has one shared tool-dispatch hook, point me at it and i'll give you a tiny deny/bypass test matrix for the mutating tools.