Both Spotify and cassettes deliver music. This is more like talking to yourself or talking to a group of people, who might respond and interact with you. Those are two completely different actions, not the same action done in two different ways. I don't see the point in social media without socializing. That's the sort of thing people do, whose neighbors appear on the 9 o'clock news, completely shell-shocked, to say, "He always seemed like a nice, young man. Kept himself to himself..."