Build an arrangement from session clips

How to build an arrangement from session clips in Ableton: lay out which scenes become which song sections and how many bars each runs, and have your assistant write the clips into the Arrangement at the right bars, named and with cue points.

What it does

The bridge has no session-to-arrangement “move” call, so an arrangement is built by reading the session and recreating clips on the timeline. The model reads the Set, plans section boundaries from bars to beats, and writes the clips. MIDI notes are copied; audio clips are referenced by file.

The tool calls

1. live_get_song_overview and live_list_clips (per track) to read the session: which scenes hold which clips.
2. The assistant plans the layout: section order, bars per section, the beat each section starts on.
3. For each placement, the write tools create and fill clips on the arrangement tracks.

The flagship Session to Song extension does the heavy version of this as one right-click action, where the entire build is a single undo. Through the bridge, the assistant composes the read and write tools to the same end.

Try it

Read my session. I want Intro 8 bars, Verse 16, Chorus 16, Outro 8. Use scene 1 for the intro, scene 2 for the verse, scene 3 for the chorus, scene 1 again for the outro. Build it on the arrangement.

The honest limit

Recreating clips copies notes, file references, names, and colors. It does not carry warp markers, clip envelopes, or follow actions (the beta does not let an extension write those), so warped or automated clips may need a touch-up after the build. It assumes 4/4 unless a scene’s time signature is read.