From 1973 to 1976, Porter lived in Germany and worked with Bobby Jones, Volker Kriegel, Kai Winding, Mel Lewis, Günter Lenz and Head, Heart & Hands.
Together with Frank St. Peter and Allex Bally, he led the group Music Community, in which Lee Harper, Leszek Żądło, Rudi Fuesers and Hermann Breuer performed.
[2] In 1981, he moved to Munich and worked with Bobby Stern, Frank St. Peter, Airto Moreira, Albert Mangelsdorff, Heinz Sauer and Sal Nistico.
In Berlin, he was in a trio along with Johannes Fink and Oliver Steidle (CD, Circle is unbroken) and in a quartet with Wilson de Oliveira and also in Christian Grabant quintet.
[3] Porter has played with Hannibal Lokumbe, Embryo, Benny Bailey, Leo Wright, Al Cohn, Jim Pepper, Sheila Jordan, Jay Clayton, and Rachel Gould.