We each used an identical custom made small app to record and play sounds through the microphone and speakers of the laptop.
We set up the laptops sideways on Luna's kitchen table so that the laptops could hear each other well.
We used two buttons to record and play back sounds. When recording, the screen would light up in red. When playing back, the screen would light up in green.We used different rules to play together. We tried the following rules and others:
(used in video)