Percussion map problem

Please don’t bump threads, Laurent. I know you’re waiting for an answer. I’m afraid I had other things that I had to attend to today (my role encompasses a lot of duties besides maintaining a presence here on the forum), and it is now past midnight here in London so I’m not going to be able to dig deeper into it right now, but I will come back to you as soon as I can. You can rest assured that I haven’t forgotten about you.