This post has not been vetted or endorsed by BuzzFeed's editorial staff. BuzzFeed Community is a place where anyone can create a post or quiz. Try making your own!
The Facebook Notification Noise Contains A Hidden Message
When is a "ba-doop!" not just a "ba-doop"? When it contains a secret Easter egg.
Recently, Facebook introduced notification sounds.
View this video on YouTube
Like this one.
This is what popularity sounds like in 2013.
View this video on YouTube
But there's a hidden Easter egg within...
Let us explain.
It's actually this chord: the Fmaj7.

Four sweet notes, with a light, jazzy feel.
The first note is F.

Via gifrific.com
No big deal.
Then A.

Via jeremyau.com
Better write these down.
Then C.

Via tumblr.com
OhmygodIthinkIknowhowthisends...
Then E.

Via gifatron.com
No. Way.
Which is to say...

Consider our minds very gently blown.
The full story: Facebook's audio designer answers "How much research has gone into developing the Facebook ping sound?"
quora.com
It's also based on international ring tones — and the doorbell-like sound of someone calling "LASSIE!"