I am a user of GPO Studio with Sibelius.
I want to change a sound (instrument) on a staff midway the score.
I want to hear the changing by GPO Studio.
Used Ctr-T and play/dictionary but no changing to hear.
~P wil not work.
When a change the channel nr. in the Sibelius mixer it's ok.
With Finale and GPO Studio everything is ok.
I have made a .Mid file of my score and played back with QuickTime nothing go wrong.
Is this option possible in GPO, so yes what can I do or have to do to hear it.