Background
Gruntz, who was born in Basel, Switzerland, was also an accomplished arranger and composer, having been commissioned by many orchestras and symphonies.
composer bandleader pianist jazz musician
Gruntz, who was born in Basel, Switzerland, was also an accomplished arranger and composer, having been commissioned by many orchestras and symphonies.
From 1972 to 1994 he served as artistic director for the JazzFest Berlin.