I don't even know where to post this audio illusion

Keep replaying.
What's the technical term for this?

Never mind:
http://en.wikipedia.org/wiki/Shepard_tone

AWESOME!

Lol that is strange ?

Made me laugh hard!! SO AWESOME!!

SPOILER ALERT! ?

it's perception. let it get about three-quarters of the way through and then pull the slider back to the beginning. illusion over.

This is a CMF of note! ?