I've just completed a Sousa-esque march called The Titans. This is a mock up for orchestra but will be arranged for concert band and should receive first performance in summer 2006.
There are some slight differences to the Sousa march form: the intro is modern, much longer than usual and slower, building accelerando to march tempo. The break strain appears only once near the end whereas normally it would be attached to both first strain repeats. The final da capo style repeat of the first strain is back in the original key instead of being in the key of the subdominant. Phew!
The form is:
Intro; A, A2; B, B2; C, C2 (trio); D (break strain); A, A2
The harmony is in the best Sousa tradition (i.e. complicated ;-), building occasionally to four layers (melody, counterpoint, descant ornamentation, accompaniment).
With the keys I basically threw caution into the wind here and just accepted whatever key we landed in, instead of trying to contrive 'easy' keys. More fool me: the intro starts off in Bb maj, modulates to D maj and the main shooting match departs in Ab major, modulating to Db maj for the trio. Heaven knows how bad the transposing parts are going to look!
Here's the link:
John Hawksley - The Titans.mp3 (4 MB).
Percussion not GPO, everything else is though.
PS - if you play it loud.... man :-)