Brevity is your enemy on a text-only forum. You have to be clearer about what the problem is exactly and just as precise about what it is you want to do. Since you mention two devices, one wonders if it's a syncing issue. If it only has to do with the MBP, you've only confused the issue by bringing up the iPhone. So you might have managed to be brief, and also to include irrelevant information, meaning the relevant information is all the more abbreviated.
So, please try again. It would help to know what you are doing on the MBP, and what happens when you do it. Again, be specific.