Actually, I just found out that the “Bariton(horn)” instruments are not transposing the same; there are two “Bariton” and two “Baritonhorn” instruments, the first of the latter two actually transposes in B-flat treble clef and is also actually named “Tenorhorn” in the score automatically.
So, as you can see in the attached images, the first instrument named “Bariton” is using the “Aah To Ooh Choir” patch and is basically a singer, non-transposing in bass clef.
The second “Bariton” is transposing in B-flat treble clef and using the HornCombi patch (so, basically a Tenorhorn in German).
The third option in the instrument selection dialog, which is the first “Baritonhorn” instrument is also transposing in B-flat treble clef and using the HornCombi patch, but also named “Tenorhorn” in the score.
The fourth instrument (second “Baritonhorn”) is transposing in E-flat treble clef, which is probably one of these strange anglo-american bugles but translated incorrectly.
