It was after Williams did Jaws that he really got famous when in the movie scoring buisness. Before Jaws, he had been composing music for TV shows and news broadcasts, but that was not to last long. ;)
Williams' score for Jaws is truly fantastic. It's hard to explain how good it is, but in my opinion, it gives Superman: The Movie and Star Wars some hard competition! The tracks are filled with great action, drama, happy and sad music. The music that plays when Quint, Brody and Hooper are following the shark at sea, using barrels to hold him up, is my, and hopefully many others favorite musical moment in Jaws.
The Main Theme is also a very classic piece of music. If you ask a friend or just some stranger which film this music is from, and you go like this: dum dum dum dum dum dum dum dum dum di dum dum dum di dum dum, I'm almost positive he's gonna say Jaws. The music for the main theme has been used in many other horror creature films. Mostly shark movies, though. It fits perfectly into the film. Spielberg thought Williams was joking when he played the main theme for him, but he kinda got used to it after a while. I'm glad he did and so are many others!
Jaws is a brilliant soundtrack filled with music that will keep you entertained for hours. Go buy this soundtrack now and discover what a great movie composer John Williams is!