like the name this tab is a pattern on a hi hat tapping it right to left
apart from when you hit the snare drum

 hh x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x
 bd o-----o---------o-----o--------
 sd --------x---------x-----x---x-x

  this might look quite stupid when you first play it but after 
 a bit you will get it