The Ultimate Rule ought to be: 'If it sounds GOOD to you, it's bitchin'; if it sounds BAD to YOU, it's shitty. The more your musical experience, the easier it is to define for yourself what you like and what you don't like. American radio listeners, raised on a diet of _____ (fill in the blank), have experienced a musical universe so small they cannot begin to know what they like.

The Real Frank Zappa Book (1989)