“I don't think we've ever had a serious argument about anything.” --  Dave Grusin The initials GRP may appear to stand for Grusin Rosen Productions, but in reality they represent a whole world of things - friendship, quality, innovation and artistic freedom. The pages below tell the story.    Beginning at the Beginning    First Grusin-Rosen Production    Initial Impetus Behind GRP    Early Grusin-Rosen Productions    A Partnership with Arista    The Arista-GRP Years    GRP Producing Philosophy    Dawn of Digital Era in Jazz    Birth of Independent GRP    GRP and Compact Discs    Early Growth of GRP    Kicking Themselves Upstairs    The GRP Ethos    Sources of GRP's Success