"Magical Mystery" is, in a way, a sequel to the most brilliant and definitly required reading "
Berlin Blues" ("Herr Lehmann" in German). Magical Mystery picks up five years or so after the events of Berlin Blues - or does it? It focuses on Karl Schmidt, best friend and sidekick to Berlin Blues' hero Frank Lehmann. Karl suffered a nervous breakdown in the wake of the fall of the Berlin Wall and since then made the classic tour from psych ward to an assisted living apartment for recovering addicts in Hamburg. When he meets one of his old friends from Berlin by chance, it's a match made in heaven: His friend has made it from running a small electronic music club to being head of "Bumm Bumm", one of the labels spearheading Germany's mid-90s techno craze. Planning a tour of his acts through German clubs, Karl, who has to stay sober, is the natural choice as a driver...
Regener's "Berlin Blues" (and its two prequels) basically were a fictionalized version of his own youth - escaping the draft by moving from Bremen to Berlin, tending bar and slacking with artists, punks, students and wannabes. Friends of mine who knew Regener in the 80s told me that the only noticable difference between Regener and Frank Lehmann is that Regener started a band and gained nationwide fame while Frank Lehmann stuck to tending bar.
"Magical Mystery" draws form Regener's wife's experiences running the techno Label "Ladomat 2000" in the nineties. While "Berlin Blues" was kind of a monument to long-lost West Berlin, "Magical Mystery" seems to be more about how hipness, the music business, and touring stayed the same since the beginning of Rock and Roll music. It's a hilarious read and I can only advise you to read "Berlin Blues" until an English translation is available.