The creation and destruction of harmonic and 'statistical' tensions is essential to the maintenance of compositional drama. Any composition (or improvisation) which remains consonant and 'regular' throughout is, for me, equivalent to watching a movie with only 'good guys' in it, or eating cottage cheese.
Frank ZappaBasically I'm in the idea business -- whether it's a musical idea or a spoken idea ... If you wind up with a political system that wants to put idea men out of business, then you have worry on your hands.
Frank Zappa