Eleven Stroke uses different breakdowns of the eleven stroke roll to test different tap roll fundamentals. Apart from the odd time signature, this exercise is deceptively simple; if you are being as picky as you ought to be, some of the patterns are actually quite tricky.
I pulled this exercise off the cutting room floor of the NC State Drumline exercise packet… I recently found a very early handwritten draft that included several exercises which, despite not making the cut, are actually quite versatile and worthy of study. This exercise was a complement to the series of “Tap Five,” “Six Stroke,” “Six Stroke Slurred,” and “Seven Stroke,” which use each roll rudiment as a means to explore roll fundamentals, beyond simply building an individual x-stroke roll rudiment.