When I was 13, in the early 1990s, I dug through my parents’ cache of vinyl records from the ’60s and ’70s. We still had a phonograph, so I played some of them, concentrating on the Beatles. Their bigger hits were inescapably familiar, but a number of their songs were new to me.

Were I a teenager in 2015, I may not have found “Lovely Rita” or acquired an early taste at all for the Liverpudlian lads. The albums stacked up next to the record player, in plain sight for years, would be invisible MP3s on a computer or phone that I didn’t own. Their proximal existence could have been altogether unknown to me.

S. Craig Watkins, a professor who studies the digital media behavior of young people in the department of Radio-Television-Film at the University of Texas at Austin, said that he and his family almost exclusively stream music now in their home and that he and his wife stored their old CDs in a seldom-used cabinet. To his teenage daughter, “those CDs are, at best, background matter,” he said.

“I can’t recall her ever taking time to search through what’s in there,” Professor Watkins said. “But I could imagine that when she gets a little older, it might become meaningful to her — that those artifacts are a way to connect back to us.”