Joe Levi interviewed Trent Reznor for Billboard. Reznor answered a question about his role at Apple:
Beats was bought by Apple, and they expressed direct interest in me designing some products with them. I can’t go into details, but I feel like I’m in a unique position where I could be of benefit to them. That does mean some compromises in terms of how much brain power goes toward music and creating. This is very creative work that’s not directly making music, but it’s around music.