Beginners on the piano (children especially) sometimes find much difficulty in learning the affinity between the keys and the notes. After acquiring the gamut theoretically, it is frequently a long time before they can apply it practically to the keys of the instrument, so as at once to find the right key on looking at the corresponding note. The process may be much accelerated (and indeed made per fectly easy) by some grown person marking on the keys the letters that designate the notes. By the following simple method this can be done without any injury or defacement of the ivory. Take a sheet of thick smooth writing-paper, and cut out of it as many little square pieces as there are white keys on the piano. Paste these papers on the ivory; and when perfectly dry, mark on each with common blue ink the letter belonging to that key. It will be best to do this in Roman capitals. If the natural keys are thus distinctly designated, the learner will find little difficulty from the flats and sharps, or black keys, being left unmarked.
The learner will thus in a very short time become familiar with the correspondence of the keys of the piano and the notes in the music book; and will soon be at no loss in finding them. It is well, however, not to remove the marks in less than a month or two. Then loosen the papers by wetting them with a little water; take them off', and wipe the keys first with a wet and then with a dry cloth. Blue ink of the common sort will leave no trace upon the ivory; but good black ink might probably leave a slight stain, unless the paper was very thick. Therefore do not use it.
The learner having thus become thoroughly acquainted with the keys while they were lettered, will not find the least difficulty in remembering them after the marks are taken off.