Apple Music war ein schwer zu ertragener Abgang einer ansonsten guten Keynote. The new Apple Music service/app/thing occupied the celebrated “one more thing” position, and it was painful to watch. Apple used five presenters—Jimmy Iovine, Trent Reznor, Drake, Zane Lowe, and Eddy Cue—to try to explain what Apple Music is and why we should care,…