I'm old enough to remember when you had to wait for several long minutes to download a new song from the internet (I'm actually that old that I remember you had to go to record shop to get new music!). Back then it wasn't even mp3s we downloaded but midi and mod music. Terrible quality by todays standards, but still something to listen if you happened to find a good one.
Nowadays we've used to hear any music as soon as we hit play. The streaming services have removed the need to download the song to your device first. You can easily browse through almost endless catalogue of music with no delay. We've come a long way from those days of old.
What's even more astonishing is the fact that today you can get completely new, never heard before music faster than you got any of those tiny mod songs so many years ago. And if you don't like what you hear you can just hit the "generate" button again and get another version of the song in no time.