To begin with, practise the first arpeggio in C, which must be played cleanly and distinctly, with a good wrist movement, before passing to the next in minor.

Similarly practise each of the 24 arpeggios; then play them all through without interruption.

Begin with the metronome set at 40, gradually increasing the speed up to 72.

Throughout this exercise, take the black keys with the 4th finger of each hand.