Well, in paper, I agree, it would be simple like that. But, in fact, it's much more delicate than that. Needless to say, MP represents much more than just a close friend who plays drums (so much that JP had a certain hesitation in inviting him). I'm not saying that JP should have asked permission to MM. I just think it would be nice to tell MM first. Anyway, it's just a curiosity of mine.