Another composing question: I want some fullness down in the bass register, and I am trying to figure out whether to use trombone or tuba. I had originally given it all to the trombone, but I am rethinking that.
I want it to be full like trombone and tuba, but not too brassy (like horn not like trumpet, but more full than horn), and not too heavy. The tuba can be too heavy at times and the trombone can be too brassy. The rest of you have probably heard a lot more of the differences between the two than I have!
Most of the arranging is in the bass clef, though it goes up as far as middle C. Some is bass counterpoint, sort of baroque counterpoint with a little of a marching band feel, and then I have a running bass. I think I will give the running bass to the trombone (along with cellos, basses, and bassoon), unless that would sound brassy.
Anyway, any advice you can give would be helpful, so if this overwhelems you just answer what you can. I am more used to a 1700's orchestra.