I need a tenor drum, which I do not see in the instrument list in either GPO4 or earlier versions. I use GP04 with Sibelius 6. GPO helpfully substitutes a bass drum for the tenor. But I already have a bass on another staff.
I tried using the snare KS, but all I hear is the side drum with snare. I see in the manual that there are switches for non-snare drum, but how do I get that effect? The manual is opaque on this topic. I have read the keyswitch explanation on page 54 about five times and cannot interpret where the KS menu selections are located in ARIA.
Keyswitches are located on the Aria keyboard in red. Click (or play the note on your keyboard) to hear the effect. I checked, and it seems that in GPO4 the without snares option was removed from the Snare Drum KS as a keyswitch. Now, they are the A and A# right below the with snare B and C. They are also still present in the Basic Orchestra Percussion patch. Right above the timpani, you'll find the single strike and a press roll.