I recently purchased GPO4 and have started working through your lesson plan. I have also watched some of the videos on the new GIO and would find it very helpful if sheet music for the different presets were available for learning purposes. I would give me a starting off point when I wished to create a certain mood. I could purchase GIO and try to recreate the sounds with GPO4 (might be a worthwhile learning exercise) but I'm worried that my ears don't yet have the required experience to pull this off. Maybe others here would also find the information of value.