GordonH

I would recommend having go at natural trumpet playing because this will give you an understanding of what was possible at the time these pieces were written. My first natural trumpet was made from the bell of a scrap chinese trumpet, some plumbing pipe and some other leadpipe parts from the chinese instrument.

Trills on natural trumpet tend to be slower and I think they would have got faster as the trill progressed just because of the physics of doing it with your lip (you tend to start slower in case you don't hit the right note).

Also, if you are playing with singers you need to negotiate how they are going to ornament things. Try finding a copy of John Wallace doing Let the Bright Seraphim. The soloist sings the ornamentation, then he ehoes it. Each time the same bit of tune comes in its more ornamented but both the singer and the trumpet player do it so it makes sense.

__________________
"O trumpeter, methinks I am myself the instrument thou playest,
Thou melt'st my heart, my brain--thou movest, drawest, changest
them at will;" (Walt Whitman)