I’m curious about the giant green shuffle button, and the way it dominates in the way that it does, providing the most gigantic prompt imaginable on what might be argued as the most important screen to the consumer.

I can’t see how this button is tied to business goals, but understand that those aren’t entirely public. So perhaps a more answer-able question for you: how is the giant prompt to shuffle an album one is listening to well-aligned with your design principles and/or the domain of music?