The tutorial is 12 pages long, but most of that space is taken up by white-space and examples. You will probably get the most out of it if you already know how to read music, although strictly speaking it is not a requirement to already benefit from the material in the tutorial.
You can get the tutorial in .pdf format by clicking this link. You may have trouble downloading it with some versions of internet explorer. In that case use chrome or firefox instead.
You can listen to the result of the tutorial here:
Drop me a note if you've been able to use the techniques explained in there.