Advanced Groove Concepts: Developing Your Weaker Hand in Modern Grooves.Advanced Groove Concepts is a collection of intermediate to advanced level grooves and patterns applicable to all modern styles of music. The focus of the book is to develop the ability to play varied and sometimes complex patterns between the hands while keeping a solid groove, reminiscent of some of the legendary funk and fusion drummers, all while building the weaker hand into a groove creating engine. Starting with repetitive hi hat ride patterns,