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diff/reel
Beats and timing

The playground

Beats and timing

A reel is a row of beats. What each one is for, how long it should hold, and how one becomes the next.

What a beat is

A beat is one screen the reel holds before moving on. The storyboard along the bottom is the reel in order; the card you are standing on is the one the stage is showing.

Every beat draws from one shared pool of pieces. Adding a piece while standing on beat 3 puts it in the pool and shows it on beat 3. Showing it again on beat 5 — from the beat panel — is what makes the reel move rather than cut.

The This beat panel: beat name, what the beat is for, colour for this side, how long it stays, and the reading-time bar.
The beat panel. The reading-time bar under the seconds is the one to watch.

What a beat is for

Five roles. The role is not decoration — it decides where the beat may sit and what the checks expect of it.

RoleWhat it is for
OpeningThe line that stops the scroll. Always the first beat.
Set the questionWhat both sides are answering, before either answers it.
Show an optionThis beat demonstrates one of the two things you are comparing.
The answerThe line the opening has been waiting for.
ClosingThe last thing said. Always the final beat.

How long a beat holds

Set it with the slider, or press type a value to enter a number. Under it is a reading-time bar: it counts the words on the beat and says whether they fit in the seconds you gave it.

  • Amber or red means the words do not fit. Give the beat longer, or say less.
  • A beat with no words still needs long enough to be seen — about two seconds is the floor for anything animated.
  • The total at the right of the storyboard is the whole loop. Around 30–60 seconds is where most reels land.

Changing a beat's length

What changes
The reel's total running time, and where every later beat starts.
Who sees it
Anyone who watches it after your next save.
When to do it
The reading-time bar says the words do not fit, or a beat feels rushed when you watch it in Play.
How to undo it
Drag it back, or ⌘Z. Nothing else about the beat moves with it.

Adding, reordering and removing

  1. Add

    Add beat at the end of the storyboard. You are offered a set of ready-made beats — a recap row, two options side by side, a run of dates, one big number — or an empty one.

  2. Reorder

    Drag a card along the storyboard. The opening and closing beats stay at their ends.

  3. Remove

    From the beat panel. The pieces the beat was showing stay in the pool — removing a beat removes a screen, not your work.

Removing a beat

What changes
One screen goes. Every piece it showed stays in the reel and is still available to every other beat.
Who sees it
Only you, until you save.
When to do it
The beat says the same thing as its neighbour, or the reel runs long.
How to undo it
⌘Z, or walk back to it in History — which names the change, so you can find it after ten other edits.

Getting from one beat to the next

At the bottom of the beat panel, Coming into this beat sets how the reel arrives here. There is a reel-wide default and a per-beat override.

TransitionWhat it looks like
CutStraight there. The default, and right most of the time.
FadeOne dissolves into the other.
WipeThe new beat sweeps across.
IrisThe new beat opens out from the middle.

Beside it, a camera mark: whether the frame sits wide, or moves in on the middle, the left, the right, the top or the bottom. Use it once in a reel, on the beat that earns it.