"The student who wishes to acquire a firm technique on
the guitar should not neglect the patient study of
scales. If he practices them two hours a day, he will
correct faulty hand position, gradually increase the
strength of the fingers, and prepare the joints for
later speed studies. Thanks to the independence and
elasticity that the fingers develop through the study
of scales, the student will soon acquire a quality that
is very difficult to gain later: the physical beauty of
sound.