Jochen was one of if not THE pioneer of software Audio mixing. He was the first to create a seven voice routine on the Amiga. A routine later used by Chris in his Turrican music. Which is why Jochen is credited on Turrican 3 having long since left games programming.
Little known fact is that he did almost all the Thalion Amiga ports. He was their number one Amiga coder for a long time.
He must have produced more music for more games in the 90's than almost any other games musician and countless Atari ST demos. Just a shame that after his compulsory military service he never returned to games.
IMO the music he did for
A Prehistoric Tale was his best "classic" work. The intro music still makes the hair on the back of my neck stand on end.
He has a CD called "Give it a Try" published by Thalion.