Beat counting is how musicians feel the pulse of the music. It’s at the same time the question of counting at the right pace and counting the number of beats in bar (which means knowing and understanding the time signature of a piece).

In this way, you can count the beats of each bar, making it much easier to play and read. The Click at the beginning will show you the rhythm.

The next etude is complicated by the fact that 16th notes have appeared. This makes the sound much faster and richer. Plus, pay attention to the articulation! The whole etude sounds staccato.