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 ZappaThe FCC extorts broadcasters by threatening to take away their licenses for infringements which are usually the result of complaints from an extreme, right wing, tiny bunch of individuals.
Frank ZappaYou've got to be digging it while it's happening 'cause it just might be a one shot deal.
Frank Zappa