I'm always leery of any service where I don't host and control my data

When I was in college, Yahoo, or some company like that, gave the entire school a free subscription to their music service, which was a forerunner of Spotify. I was an enthusiastic adopter and I had a big library of music and I made all kinds of playlists. But what songs did I listen to? I have no idea! Because the service sucked and was difficult to us…