T1 · 60-72 bpm · 16 beats · 18% tolerance · forgiving

Tap one even quarter on every click. Sustain it.

What this skill is

Sustained even tap accuracy across 16 quarter-note beats while a metronome plays. Different from pulse-finding (which tests internal pulse with audio dropping out) — this lesson keeps every click audible and asks: can you stay locked across the whole span without drifting, doubling, or skipping?

Common misconception

“If I tap when I hear the click, I’m doing it.” That works for hits — but the lesson also penalises extras. A learner who taps eighth notes (two per click) has every beat finding its on-beat tap, so the simple hit count looks perfect; we count the extras separately. By T3 you can have at most one extra; T5 zero. Doubling fails.

How this builds on the prior lessons

Pulse-findinggave you a steady internal tick — pulse-internalisation. This lesson tests whether the tick survives sustained playing: 16 beats at T1, 32 at T5. If your hand drifts even 1% per beat, by beat 32 you’re 32% off — way past the 8% T5 tolerance. This is the test for the durable hand-clock you’ll need when reading actual quarter-note phrases.

4 trials · 4 count-in beats → 16 clicked beats. Pass per trial: ≥13/16 hits within 18% tolerance, ≤2 extra taps. Pass session: ≥4 of 4 trials to promote.
Today’s tempos: 60 · 60 · 72 · 72 bpm (random order per session).