The original four-second cue has eight evenly spaced pulses, each 0.5 seconds apart. Layer A is a lower soft tone on beats 1, 3, 5, 7. Layer B is a higher soft tone on beats 2, 5, 8. Beat 5 contains both tones together. Text grid:
Tactile route: eight numbered tiles in a row; place one lower-texture marker for A and one higher-texture marker for B, with two markers on tile 5. Volume should be comfortable; do not require listening. The cue is original synthesised tones, not a copied recording or learner performance. A student may create their own quiet vocal, tapped or assistive-device layers.