Play I Saw Three Ships on Gesture Synth

Read the Two-Section D-Major Cadence Route

Section one is D–G–A7–D/F-sharp: I–IV–V7–I in first inversion. Section two is B minor–Em7–A7–D: vi–ii7–V7–I. The first section establishes the major frame and inversion; the second keeps two targets in the minor wrist world before restoring major for the dominant-to-tonic cadence.

For D, use one raised left-hand finger for degree I and one raised right-hand finger for a triad. G uses four raised left-hand fingers for degree IV and one on the right. A7 uses all five left-hand digits for degree V and four right-hand fingers. D/F-sharp returns to the one-finger left degree-I pattern while the right hand uses two fingers for first inversion.

• Target 5: show index plus little finger on the left for degree VI, tilt the left wrist to minor and keep one raised finger on the right for B minor.
• Target 6: keep the left wrist minor, change the left hand to the two-finger degree-II pattern and show three right-hand fingers for Em7.
• Target 7: restore the left wrist to major, show all five left-hand digits for degree V and four right-hand fingers for A7.
• Target 8: return to one raised finger on each hand for a major degree-I D triad.

Use the Lock and Advance Windows for Clean Preparation

A target confirms only when degree, world, quality and octave agree for about 350 milliseconds. After confirmation, the overlay waits 650 milliseconds before showing the next target. Use that short window to release tension, look ahead in the chord chart and decide which left- and right-hand fingers must change.

Keep both wrists in stable, camera-readable areas. Horizontal position does not select degree. On the new target, form the left-hand degree pattern, set the left-wrist world and show the required right-hand quality count. If the label flickers, stop and make the current complete shape readable instead of sweeping a hand across the frame.

Build a progressive tempo ladder → · Review inversion finger counts →

Resolve A7 to D With Two Complete Gesture States

For target seven, A7 requires the major left-wrist world, all five left-hand digits for degree V and four raised right-hand fingers. Hold that complete state until the match locks. During the confirmation pause, prepare to close the right hand to one raised finger and the left hand to the one-finger degree-I pattern.

When target eight appears, keep the left wrist in the major world, show one raised finger on each hand and hold D until it locks. The final cadence is complete when both targets are confirmed in sequence; the chart is not advanced by a metronome click or by moving the hand back to a spatial D position.

Learn stable chord-release technique → · Check camera-safe hand positions →

Use the Fixed 118 BPM Reference and Fix Mixed Targets

First complete both sections with the metronome off. Then enable the optional built-in click, which begins after the first detected chord and runs at the song's fixed 118 BPM. It is a timing reference only; stable recognition advances the targets. The click stops at the section break and can be enabled again after Next section.

If A7 reads as A, keep four right-hand fingertips separated. If Em7 reads as E minor, retain the two-finger left degree-II pattern and minor wrist world while showing three right-hand fingers. If B minor stays major, keep the left index-plus-little-finger degree-VI pattern and tilt the left wrist to minor. A correct visual lock with late sound points to output latency rather than a degree-position error.

Diagnose browser and audio lag → · Fix camera recognition problems →