This is a general recreational activity, not medical assessment or treatment. Use stable support and stop for discomfort.
How to play
Choose alternating left/right beats, both hands together, or a mixed sequence. Camera mode first calibrates a comfortable movement area. Follow the on-screen cue and strike the matching drum close to the beat. Without a camera, use touch, A or Left Arrow for the left drum, L or Right Arrow for the right drum, and Space for both.
Comfort and safety
Start seated or with stable support at 1/8×, 1/4× or 1/2×. Speed changes the actual beat interval. Keep movements small and controlled; stop for pain, dizziness, breathlessness or unusual fatigue. Camera images stay in the browser and raw video is not saved.
This recreational rhythm activity is not a medical measurement, assessment, diagnosis or treatment.