This week’s Kopprasch is a study in articulated chromatic scales, mostly within a one to one and a half octave range. Suggested tempo in my edition is dotted quarter=104-144, (or quarter=104-144, if you are using the Gumpert/Frehse edition) and my tempo is around dotted-quarter=132. Try to make a distinction between the accented and unaccented dotted quarters.