This week’s Kopprasch is No. 13.
This etude can be quite tricky in terms of accuracy because of the sempre staccato marking. My recommendation is to practice it quite slowly at first, and with a bit longer articulation until the intervals are solidified. It doesn’t have to go super fast anyway, perhaps somewhere around quarter=120. Practicing the alternative rhythms and articulations included can be very helpful as well. Feeling a slight accent on each downbeat is a good way to feel the meter and keep everything in tempo.