Camera access is blocked
Allow camera access beside the address bar, then try again. You can always keep playing with Keyboard Mode.
Device help
Fix camera, microphone or performance problems.
Every failure state has a way forward. If the camera stays unavailable, Keyboard Mode keeps the instrument playable.
Your camera is in use
Close video meeting apps and other tabs using the webcam, then retry.
A hand is not detected
Keep the full hand inside the frame, separate it from your face and add more even light.
Tracking feels unstable
Avoid backlighting, keep the camera still and move slightly farther back.
There is no sound
Interact with the page first, check Master Volume and confirm Stop Sound is not active.
Performance is slow
Turn off Virtual Head and the skeleton overlay. Audio response takes priority over visual effects.