Hi, just bought the GHLiveBLE software and follow the easy tutorial, i've got a Macbook pro 15'' mid 2015 and when i try to connect my guitar it doesn't work. It seems that it does not see it in the bluetooth mac area either. The controller connects fine on the xbox one so the problem does not come from the controller.

Can someone help me ? 

If you mean this project, their comments are open. Please ask the creators. They can help you more readily than random users from the community, especially as this category is for questions about Itch, not individual projects.