He started an evening degree in Psychology and Philosophy and received his doctorate on Kant's categorical imperative.

[citation needed] Since his interpretation was not in accordance with the academic way of thinking, he left the college with the remark: "The dust of the universities is like a shroud over the truth.

[4] After returning to Berlin, Froese began recruiting musicians for the free-rock band that would become Tangerine Dream.

[6] Froese was a friend of such artists as David Bowie, Brian Eno, Iggy Pop, George Moorse, Volker Schlöndorff, Alexander Hacke and Friedrich Gulda.

[8][9] Bowie named Froese's solo album Epsilon in Malaysian Pale as a big influence and a soundtrack to his life in Berlin.

Disc five consists entirely of "previously unreleased material": ten tracks, seven of which are credited only to Froese as the composer.

Another compilation box set, the 6-CD I-Box (2001) contains further bonus tracks credited only to Froese: "Ivory Town", "Storm Seekers", "Cool Shibuya" and "Akash Deep".