You are not triggering sounds. You are introducing forces
into an existing stream. Every gesture bends the flow.
Pebble
Quick flick · Small movement
Local ripple — brief shimmer, echo, harmonic wavelet
Current Drag
Slow sustained motion
Time bends — tempo stretches, notes lengthen or compress
Pressure
Hand openness · Palm tension
Density shifts — more overtones, sound thickens
Turbulence
Circular · Irregular motion
Instability — tremolo, living movement, micro-variations
Redirection
Horizontal drift
Emotional gravity — mood biases darker or brighter
Suspension
Stillness · No movement
Time slows — flow sustains, lingers, hangs
The river never stops. Your hands are forces in the current.