Mark Portmann
Los Angeles
MARK PORTMANN
Musician/Producer/Composer/Arranger
Mark Portmann’s music has been heard all over the world, with millions of records sold. Coming from modest Midwest origins, as a young man …
MARK PORTMANN
Musician/Producer/Composer/Arranger
Mark Portmann’s music has been heard all over the world, with millions of records sold. Coming from modest Midwest origins, as a young man …