This piece is much like other non-film works by John Williams. It is in more of a traditional contemporary style (if there is such a thing) than his film scores. If you enjoy contemporary music then this piece will be very nice to add to your library, if not, then you may want to pass it up.
As far as the difficulty, it is very demanding. The rhythms are most complex, and the piece is very demanding on the lip. The first movement begins slowly, and then is set at a more moderate tempo for most of the piece, the second movement is very slow, and the third is very fast, with some good old Arban-like triple-tonguing.
This is a very challenging piece for any performer. Further more it is a very interesting work. Unfortunately, not many people know of John Williams' works (beyond his film scores). This is a great, and difficult work for trumpet.
K. Alexander Blanton - (Jeffersonville, Indiana)