First of all. The ProTracker interface is NOT BAD. It's not the worst thing of it. Maybe the best, this is why it has been more or less replicated in programs such as FastTracker II. You can do almost everything with the keyboard. Besides, everything is at a click of distance, because it doesn't follow modern GUI design patterns. Please check
www.renoise.com. This is what the evolution of a tracker should be. The OCTAMED workbench-based interface: NO. ProTracker feels rock solid, like hardware, this is why it was so successful.