An important ritual throughout my youth was inspecting someone’s music collection the first time you visited their house or rode in their car and using that information to decide how cool they were. Despite the broad transition from physical to digital media—CD sales peaked in 2000, the year after Napster’s founding—the ritual, which depended upon ownership of the former, remained widespread for at least another decade or so, fading for me sometime in the early 2010s when I finally put my huge CD collection in storage (my final CD purchase, the Japandroids’