Record four parts, one at a time, going clockwise — then hear them together.
Headphones recommended — the click plays through speakers, not into the recording, but a speaker can still bleed into the mic.
Mixing your four parts…
Camera and microphone access is needed — your browser will ask for permission. Part 1 gets a silent "feel the beat" bar before its count‑in so every part locks to the same downbeat; watch the pulsing dot if you're recording with sound off. Each part is one uninterrupted take. The final video downloads as a playable file (mp4 where the browser supports it, otherwise a widely-compatible webm).