Come on Bruno. Usually better musicians don't play arrangers. And they don't have to. And also there are some really good arranger players, but in general most are pretty poor musicians. Sure do many things but still only mediocre at best as a musicians or players. Transpose button is arranger players best friend. And I am not saying people should not play arrangers.We all do use them. I play mine when I have to. But if we want to be honest about music, and I assume we all love music . It's not even close to the real music and it never will be. But it's easier to think the other way around. Makes us feel good about ourselves.