Guitar and boxes a little differently - that's the name of the legendary guitarist Michal Pavlíček's workshop, which will guide you through guitar psychedelia and sound design at the Festiwall. You can look forward to a crash course in the use of a plethora of boxes from, for example, EarthQuaker Devices, Empress Effects, Boss or Eventide, and live samples of Michal Pavlíček's music from the production Robot Radius, presented by the National Theatre.