You have been doing much helpful listening, mathis, for me and others. Thank you. [edit] and thanks for the additional tuning pointer, I've been holding off addressing the brass, where this is, until deciding on some new samples [/edit]
This is concert music, music for conventional orchestra. The tuning issues have been brewing in my music for quite some time, resulting from some live performances where players tuned OUT of equal temperament but failed to tune INTO any good relationship to the music. So in this score and other recent ones, I'm offering guidance to how to play every note -- every note is marked with an intonation indication. A surprising result of this is that it affects the counterpoint of the music: if a note is to be tuned flat in one harmonic situation, the melodic interval from that note to the next may not be an out-of-tune perfect interval, nor an un-natural third or sixth, with a melodic interval other than the pure tuning. Just the same way that paying attention to parallel and direct fifths, and doubling rules for notes in a triad, affect the outcome of the music.
The mock-up is purely to have a good demo to send conductors who might be interested in the music. I am spending lots and lots and lots of time on this to determine if it is possible! The alternative is to use a demo from an amateur orchestra (not so good) or a paid for-hire orchestra (not predictably a lot better, and expensive). So far, the New York Philharmonic hasn't recorded for me.
The title for this piece seems to be becoming "Holy Day Overture", with it's three secular-semi-religious sections, "The Brooding God" (judaism), "The Happy Gods" (paganism) and "The Compassionate God" (christianity).