Midi editing program

[Slavakion]

I need a simpe program to edit midi files. All it needs to be able to do is edit the instruments being used and insert controllers that tell it to loop back to a certain point. A good reference is Midi Maestro. Unfortunately, it's not free.

Any thoughts? And correct me if I'm wrong, but I don't think Noteworthy composer can insert those controllers. Otherwise I'd use that.