I find it kinda cute how most of Tumblr will be blown away when they discover two songs that are exactly the same.
most popular songs will share, or have the exact, same 4 chords. Which is why, if you line them up and play them at the exact same time, you’ll get a lot of instances where they mesh together perfectly.
Have a fun video to watch that shows exactly what I’m referring to.
kototyph 