it's a little groove. I compose one every monday, to keep my entries a bit more interesting.
I'll dig out the full addess, so you can see it's not a scam. It's just that they use a notation system that carries over the link, for practical purposes. :)

http://www.mikeslessons.com/gscribe?TimeSig=4/4&Div=16&Tempo=160&Measures=4&H=|c-x-b-x-b-x-b-x-|b-x-b-x-b-x-b-x-|b-x-b-x-b-x-b-x-|b-x-b-x-s-x-c-x-|&S=|----O-------O---|----O-------O---|----O-------O---|----O-------O---|&K=|o-----o-------oo|o-----ooo-oo----|o-----o-------oo|o-------oooooooo|