Zappa's music, while drastically modern and experimental, is always borrowing the stuff that kind of sticks to the bottom of pop culture and incorporating it into his music. Frank Zappa's music is the music of the fly on the wall, of active observation. In the final breakdown I see Zappa's musical philosophy as a reflection and extension of his simple rules of life - active creation of life as you live it, each moment, each day, each word you speak or hear. There's no better example of this than in the way his music was performed live. Each performance changed from day to day depending on the news, the crowd, the venue.
Every second provides a different point of view.
It tests the limits of our acceptance of the abstract. At any rate, take my word for it, Frank Zappa is real damn cool. If you want to really test the waters and see if you like or dislike his music and point of view you should listen to one of the early Mothers albums. My money says We're Only in it for the Money is the best, but Freak Out or Absolutely Free would work nicely. Also, you should by all means run down a copy of Joe's Garage - in a word, genius.