Syncing Tempo and Phase Across Apps with Ableton Link

The whole task here is the moment every hybrid AV rig eventually hits: a laptop running a live-coding environment, a second machine on a DAW or groovebox app, and a VJ app driving projections — and they all need to breathe on the same beat without a cable snaking a MIDI clock from a designated “master”. Ableton Link solves this on the local network, and understanding how it solves it is what lets you trust it on stage when someone’s app crashes and rejoins mid-set.

Start supported: two music apps on one machine, Link enabled, and watch “Ableton Link synchronizes tempo across apps by group adoption” happen live — nudge tempo on either side and see the group adopt it. Then add the phase layer: work through beat alignment and “the Link quantum value sets the loop length for phase synchronization” to understand why loops land on shared boundaries even though, per the independent-timelines idea, each app is counting its own beats. Practice quantized launch repeatedly — pressing play and landing on the next quantum boundary is the drill you’ll use every time you bring an element in during performance. Finally bring in the visual app and the start/stop rules, and shed the “you need Ableton Live in the session” assumption.

Every required atom gates the capstone: you cannot narrate decentralized adoption, align loop phase via quantum, or explain why a newly joined peer doesn’t auto-start without them. The supporting atom on AbletonOSC’s per-beat listener enriches the picture — a concrete way to drive visual events from Live’s clock once the Link session itself is solid.

Runnable examples

Generated from the context/ instrument corpus by concept (redistributable idioms only). Do not edit — regenerate with gen-module-examples.mjs.

clock-quantized-launch

0.5::second => dur T; T - (now % T) => now;

_{chuck-0006 · MIT}