" The Slap invented by Larry Graham more than 40 years ago , has now become a technique practiced by most of the bassists . Whatever the musical style, it is harnessed to boost the bass playing .
Famous bassists as Marcus Miller, Alain Caron, Victor Wooten and many others are constantly evolving their type of playing. Others, including the most amazing representative Abraham Laboriel, mix or invent all types of percussive techniques , showing the fantastic potentials of playing a musical instrument still evolving
From these numerous influences, from this movement , came the desire to create a very rhythmic playing concept (called STEP ) coherently gathering a number of personal percussive technical effects or inspired by effects occasionally used by these famous contemporary bassists . "
The following of this paper in BASS MAGAZINE (in french...) :