High-low eighth alternation.

Here’s the lovely bit.

Listen once, count with the click, then play the displayed pattern. Alternate registers without inserting extra notes. Use the lower C4–C5 range; follow note labels for accidentals. Finger choice and key-release duration are not scored. Pattern positions count from 1; 1.5 is the & of beat 1, and 1.25/1.75 are e/a. C5 at 1; C4 at 1.5; B4 at 2; D4 at 2.5; A4 at 5; E4 at 5.5; G4 at 6; F4 at 6.5. The pattern lasts 8 quarter-note beats; leave gaps silent.