in the case of stuff like "freestyle rap", the thing that's being most
keyed-upon, musically, is novelty. novelty, within a range, activates the
reward mechanisms.
the larger context of 'rap' itself, and it's central thing, is close to being
the same, Justifiably-Lamenting stuff that formed the heart of the 'spiratuals'
through which enslaved folks sought to assauage their spiritual and physical
wounds... only, simultaneously 'adjusted' to correlate, appropriately, within
the 'modern' version of the Same-Stuff.
ken
