The Etude magazine, Aug. 1919, p. 515
The Pleasure of Memorizing By Ben Venuto
CICERO tells us "Memory is the treasury and guardian of all things." To have memorized a number of really noble and beautiful pieces of music, is to have added immensely to one's inward wealth and to have enriched one's personality. To have a good repertoire at one's fingerends for use in public or in the social circle is a desirable object in itself, but the benefit does not stop there. A really musical person often takes great pleasure in recalling a melody to the mind, when not at the instrument at all, just as a religious person might meditate on a verse of Scripture while engaged in every-day occupations.
Be careful to fill your musical memory with what is worth while, not with trash.