🕊 FREE-FORM LAB

How to read this

1. Pick a player on the left. A player is a recording of someone playing — either one of your real runs (Recorded run tab; send one here with the 🕊 button next to a replay on the game's stats page) or a made-up one (Synthetic: "Steady" plays cleanly, "Fumble & carry on" does what you did at bar 20 of Feux Follets, "Breakdown + restart" flubs and restarts a bar back, etc.).
2. ▶ Run all 10. The same playing is fed to ten different clock-following algorithms, using the real game engine.
3. Read the sentence in the "What it did" column — ✅ it kept up with the player, ⚠️ small trouble, ❌ it ran ahead, fell behind or stopped the run. The numbers to the right say the same thing in seconds; hover a column name for its meaning. The first row is the best for this player.
4. Click a row to see its timeline: grey = where the player was in the piece, blue = where the game's clock was. Perfect following = the lines sit on top of each other. Blue above grey = the game ran ahead (your Feux symptom). The ten little charts below compare all of them at once.
5. When an algorithm convinces you, press its "use" button — the game plays with it from your next free-form run (the 🕊 tempo pill in the game shows its name). To compare algorithms fairly, try several players: a clean one, a messy one, and your own recordings.

Rows tie at ✅ when a player is too easy to tell the algorithms apart — that's information too (they all cope); the interesting players are the messy ones and your real runs.