After all the hours of mastering the sweep picking for Ants of the Sky I have become stuck on this believe it or not. Do I tap the 20th fret with my right hand then pull it off and that is the pull of then do the same to the 19th or am I pulling off the 15th to the 19th?

For anyone whom knows the song its Ants of the Sky by BTBAM last part at the end of the sweeps at the end of the intro.

I appreciate the help!
Quote by thrashdeth
Tap 20 with yore right hand, then pull off to 19, then 15.

So I only do the right hand tap once or for both 19 then 15 because it has two T's listed?