Transposed Notation

Good evening from Germany everybody,
I’m working on Beethoven’s 9th Symphony and he demands Trombones in D.
I’m using Note Performer and because I couldn’t find it in the presets (there are only B and C trombones), my question is:
Can I change transposed notation to sounding notation for this particular instrument?


In orchestral music, trombones are always written at concert pitch (ie sounds as written).
For Beethoven’s 9th Symphony, you would choose Alto Trombone, Tenor Trombone and Bass Trombone. You might have to change the clef, but at that time the Alto, Tenor and Bass Trombones were usually written in Alto, Tenor and Bass clefs respectively.


I think you mean trumpets, not trombones.