dream / 741
Piano Room Pulse
Two phones on one room code, ~80–150ms apart. They estimate their clock offset NTP-style and lock onto ONE slowly-drifting pulse — a real ensemble emerges across the latency.
Warm dark piano room. Tap start to wake the sound (also unlocks audio on iOS), then play a real keyboard, your computer keys, or the on-screen piano.
solo — a ghost partner keeps the pulse