Yanni or Laurel?

Yes, cleeds, my initial statement was not correct. How about,

Our ability to hear differently can be misleading at times.

BTW, it was just a lead in for the joke.

I hear Yanni on the original clip, but can hear both on this clip with varing pitch shift. I would really worry if I couldn't hear both on it.

https://m.youtube.com/watch?v=LrWMFsz5VOg

I have asked three folks at work today, and surprisingly two (one male and one female) hear a combination of each, while a third (male) only hears yanny.

Cleeds - "I think that raises significant questions about our hobby, how valid listening tests should be conducted and even whether a scientifically valid listening test is even possible."

Totally agree.  Really supports the advice I see all the time on this and other forums of "trust your own ears - if it sounds good to you and you like it, that's what counts."

With the above link, I only hear Laurel.  But on NBC news this morning, it sounded like it alternated back and forth, regularly, between the two.  Need more info. on recording chain and provenance.

I hear only laurel. It never comes close to sounding like yanni. 

Just like with the dress that appeared to be two different color combinations, this it yet another stab at internet fame over nothing.

I don't hear either.  All I hear is "kill them, kill them all." But then again, I hear that all the time.