ASTRO

The problem

People who make music on their own do many jobs: they compose, arrange, mix and play live. In Ableton Live, one of the most widely used programs for producing music, every move goes through menus, shortcuts and windows. When your hands are on the instrument, stopping to look for a command breaks the flow.

What it does

ASTRO is an assistant that lives inside Ableton Live. You ask it for something out loud or in writing, even from your phone, and it does it: it works on tracks, instruments, the mixer, clips, scenes and automation, and knows almost 200 different actions. A discreet panel on the Mac shows what is happening and then disappears.

It grew out of the way I work in the studio and on stage, for Ableton Live 11 and 12 on macOS.

The choices that matter

• It talks to the software from the inside. Instead of faking mouse and keyboard, which is fragile, it uses the channel Ableton provides for being controlled from within.
• Rules first, then AI. Simple commands are recognised and carried out straight away, without AI. AI comes in only when the request is more complex.
• AI proposes, the software executes. The AI never touches Ableton directly. It drafts a plan made only of planned actions, waits for confirmation, and every action is checked before and after. You always know what it can do and what it has done.
• When something goes wrong, it says so. If the AI service fails several times in a row, the assistant pauses it for a minute and says so clearly, instead of pretending all is well.

Problems solved along the way

• Google blocked the addresses of the server hosting ASTRO, and the AI stopped until I routed the requests through different infrastructure.
• Measuring real use. In June, automated tests and real use were mixed together in the statistics, and the success rate swung between 79% and 21% within a few days. Since then the two have been measured separately.
• Not everything can be driven from the inside. Of the 193 catalogued actions, 110 go through the direct channel. The others need shortcuts or sequences of steps, which are more fragile, and a review found 41 still to be verified.

Where it stands

ASTRO is a private alpha for macOS. My assessment in July was “about 80% functional, not yet ready to sell”. Going further needs a signed app, an Apple Developer account and a beta period. The latest features date from July 2026; since then I have focused on other products.

What I learned

• A closed list of actions makes AI explainable. You always know what it can do and what it has done.
• Make it safe before you simplify. Before removing the old parts I added automated tests, and that surfaced two hidden bugs in the metronome.
• Automated tests and real use must be measured separately.
• Check before you rebuild. What you need often already exists and is more complete than it looks.

Try it

There is no video yet. The page for musicians is at silvestronelcosmo.com/astro, and I can show ASTRO live on a call.