If it doesn't follow a formua, it isn't music. Even Prog rock and prog jazz follows a formula, no matter how radical the artist may get within the genre, it has to follow some pattern or people simply won't listen to it. Even the artist would think its shit.

People that complain about formula music are like drummers, they hang out with musicians. Then they rant and rave about house music and rap when the music component is literally ancillary to the track and its used over and over by rapper after rapper.