Green Needle or Brainstorm

Depending on what you're thinking you can hear either "Green Needle" or "Brainstorm." It reminded me of the white/gold or blue/black dress that went viral a couple of years ago. I already knew that people could perceive colors differently, but I found it really interesting that sound could be perceived differently as well. We didn't directly discuss in class why this may be, I have a feeling that it has to do with hearing different frequencies.

https://www.youtube.com/watch?v=1okD66RmktA