5.13 The Block Arranger

A block is a span of bars — the clips on every track, the automation, the chords and the Arranger blocks in those bars — that you can place again anywhere on the BLOCK lane at the bottom of the timeline. A placement is a live copy (2-way: edits travel both ways · 1-way: it only receives) or a plain copy (independent, never updates). The sections below are the rules of live sync.

5.13.1 The one rule

A live copy's bars are compared with the group's memory after every edit. Whatever differs in one 2-way copy is your edit; that copy becomes the origin and every other 2-way copy — and every 1-way copy — takes its bars. Content is compared block-relative: "the same" means the same at the same distance from the copy's start. A live copy only ever holds the block's bars, never more.

5.13.2 What travels

You do this inside a live copy…	…and every other live copy gets
Draw, move, delete or re-velocity notes in the Editor (inside the clip, past its end or before its start — the clip grows)	the same notes, the same clip length
Move, resize, trim, split, glue, duplicate, delete, mute a clip; change its gain, fades, colour, label, slip (content offset)	the same
Warp a clip (ratio, mode, pitch, formant, markers)	the same warp
Draw, paste, duplicate or drop a file into the bars	the new clip (see 5.13.4 for a clip longer than the bars)
Chord cells, Arranger blocks inside the bars	the same, block-relative

Automation never travels. Track automation belongs to the timeline, not to the section — repeats are meant to differ (the second verse rides a little hotter, the filter opens further on the last chorus). A block carries its lanes once, when it is placed or moved; from then on the lanes in every copy are yours — a plain copy that later joins live sync keeps the ride you gave it (only its clips, chords and Arranger blocks are replaced). To repeat a ride in another copy, copy and paste it in the Automation editor. No automation edit is ever compared, pushed, flagged or "put back in step" by a block.

5.13.3 What stays where it is

Local music. Clips that were already in the bars when a copy landed on top of them, a recorded take, and the tail of a file cut at the copy's end (5.13.4). They are the copy's own: they never travel and are never compared. Their painted label starts with ⌂ and the info line says local — not part of 'Verse'. To make one part of the block, right-click the span ▸ Local music in this copy ▸ Make part of block (one undo step); it then appears in every live copy.
Automation — always (see above).
Tracks switched out of sync (Sync mode ▸ Turn off sync for…): that track's clips are the copy's own; label ⌂, info line own track — out of sync with 'Verse'. They move and are deleted with the copy — except a clip that reaches past the copy's end (a long file you dropped there): that one is ordinary music, never shortened, and stays where it is when the copy is moved or deleted.
The clip lock (freeze) — it belongs to the track, not the copy.
A clip that starts before a copy and reaches into it is outside the block: untouched, uncut.

5.13.4 A clip longer than the copy

A file you drop, paste or draw inside a live copy that reaches past the copy's end is cut at the edge on the next sync. The part inside is block content and appears in every copy, never longer than the block. The tail stays exactly where you dropped it as ordinary music (⌂) — the file is never shortened, it is just no longer one clip. Audio keeps its samples (the usual 3 ms declick crossfade sits on the cut); a MIDI file keeps every note, split between the two parts. One Ctrl+Z returns the one clip you dropped.

5.13.5 Recording

From ● until the takes have landed, live sync stands still — MIDI or audio, any record mode, count-in included.
A take that lands inside a live copy's bars is that copy's own (local, ⌂): it stays where you recorded it and is never pushed to the source or the other copies. This holds whether you recorded into the source or into a copy.
A take that only reaches into a copy's bars from outside is left alone.
One Ctrl+Z removes the take and its mark together.
Edits you made while the recorder ran sync the moment it stops.
To use the take in every copy: span menu ▸ Local music in this copy ▸ Make part of block.

5.13.6 When sync stops instead of writing

State	Why	What to do
conflict (amber bar on every copy)	two 2-way copies were changed differently in the same step, or while the block's sync was off	span menu ▸ Use this one for all on the copy that should win, or Revert to the group
held	a 1-way copy was edited	Switch to 2-way and push this edit, or Revert to the group
a copy in conflict alone	a frozen or locked track refused the write, or a content half (chords / Arranger blocks) could not be written	unfreeze / unlock, then Revert to the group
paused / block sync off	you paused it	Resume from the span menu; copies that differ by then are asked (take the block / push this)

5.13.7 Undo

Every sync is folded into the edit that caused it: one Ctrl+Z undoes your edit in the copy and its mirrors everywhere. Editor note undo is mirrored the same way.

An AI assistant follows exactly the same rules when it places blocks, makes local music part of a block, switches a track’s sync or settles a conflict. It tells you when a copy’s chords or Arranger blocks could not be written, and when a take it recorded became local to a copy.

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