Douglas R. Docker: live (2019-2020), "The Mystic Technocracy - Season 2: The Age of Entropy" (2021)

Tony Franklin: "The Mystic Technocracy - Season 1: The Age of Ignorance" (2012)

Giorgio Novarino: "The Mystic Technocracy - Season 2: The Age of Entropy" bonus track (2021)

Luca Pisu: "The Mystic Technocracy - Season 2: The Age of Entropy" (2021)

Anna Portalupi: live (2013), "The Heisenberg Diaries - Book A: Sounds of Future Past" (2016)

Roby Salvai: "The Mystic Technocracy - Season 2: The Age of Entropy" (2021)

Celeste Veglia: live (2013)