It's the franchises music. It's not different for every film. The music you hear in the begging, and the end the (doo do doo do doo) JP Theme, Is in every movie.
The music you hear during suprising parts, or the raptor chase, Are either composed differently, Or are from the actual theme.
Joe Johnston had someone else compose the theme for JP3. (He screwed it up) That person did litterally the same thing as the first two films, However, He did it differently in one Verse. It's got a repeat. You've gotta listen closely though.
Again, Under the franchise thing, It's not stealing. Stealing, Would be if I Were to make a parody of JP, And use the music and everything, With out crediting, or contacting Universal, Spielburg, Or that one chap who composed the first two.
Life cannot be contained, it breaks walls, crashes through barriers sometimes painfully, but uh... Life uh, finds a way