Fig 1The beat gateClick or press Space on the beat120 BPM · lockout armed
Gate dog: the first half-beat tick a press may takeNotch per half beat: perfect slot ±60 ms, good bevel ±100 msPawl: down after an EARLY push, up when a judged press moves the gateA press before the gate is EARLY: it breaks the combo like a miss and moves the gate 0.5 beat later, but only once per gate, so mashing costs one lockout, not a pile-up. Shown at 120 BPM, one light attack after another.