Sibelius with standard midi vs NotePerformer sounds

This is a demonstration of an Orchestral example piece played Sibelius 8.3, with no sound library installed, using just the standard midi in Windows 7, compared to the sound of the NotePerformer addon

[@MeisterSegarra]

Question, can you change thw sound library while using Noteperformer?

[@samuelcamak]

Yes, you can !