How it plays
A sensor at the back of the head picks up the rhythm that grows when you relax with your eyes closed, and sends it to music software (Ableton, Max, TouchDesigner) like any other controller.
One sensor
One sensor at the back of the head, and a small sensor on the earlobe.
Your rhythm
Relax and close your eyes: the rhythm at the back of the head grows.
Into sound
It turns that rhythm into sound, live, in the music software you already use.