Sandsong

Sing to a square plate covered in sand. At each resonance the grains run from the shaking parts and draw the lines that stay still.

Drag across the plate to sprinkle extra sand.

Mode atlas

Where each mode stays still, grouped by n + m. Pick one to drive the plate at its resonance.

Drive frequency

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Each peak is a resonance. Click the spectrum to tune; clicks near a peak snap to it.

Sweep
Sound
Sand
Display

Keys: ←/→ fine tune · [/] previous/next resonance · Space pause · P pour · T tone · S sweep up or stop