Method: shapes, not notes · one hand first · loop until 3 clean passes · chain the pieces · review the oldest.
Keys: Space play/stop · Esc stop · Home restart · ← → step (wait, ⇧ ×10) · L R B hand · M mode · G guide · N P lesson. Calibrate: type the avg ms the score shows into latency.
Other song: drop a .mid on the page or