Where do I save the Accent hit sound content to? (Which folder)
If you are trying to change an accent hit, clicking in it will bring up the file location within your default_lib folder (I mention some of this in the 2nd video). If you want to add an accent hit then you can save it within your user_lib folder. However I suspect you can import the hits from anywhere and when you sync it copies it to your BeatBuddy ( not tried this before).
Hopefully that has answered your question.