The designation gets even more confusing the day you are sitting in a Brass Choir and they call in a guest foreign conductor who pronounces it, "the key of Haitch".

And you're sitting there holding a Bb Trumpet, looking at a sheet that says, "Tromba in Re".

Can you transpose Bb Trumpet to Tromba in Re in the key of Haitch on the fly?

If the doggone sheet had been written for Tromba in Bb, then it would have been written to read in "our" Db.

Since the sheet was penned for D Trumpet, C on the sheet sounds as a Concert D so the on-the-fly transpose from C would be to think that the Haitch in D is a step down, or A. On the D Trumpet. On the Bb horn, that C becomes an E, two steps up.

Thank God it was mostly half notes.

20th Century Composers. Trying to do all that was not done before.

I think there was a good reason some of those things were never done before.


--Mac