Some people wonder why a person who is gifted with voice simply can't get up and sing without any instruction. The reason is that voice is an instrument; a natural, human instrument, it is true, yet one in the use of which the fortunate possessor requires practice and training. The purpose of a singing-method is to produce a perfect coördination of all parts of the human voice-producing mechanism, an apparatus which is by no means simple but, in fact, rather intricate and complicated. It will be found, for example, that such a natural function of life as breathing has to be especially adapted to the requirements of the singing voice; that breathing such as suffices for the average person will not suffice for correct voice-production. Again, in every voice certain notes are better than others, and a correct method of voice-production, while it may not be able to make every note in the range of voice of equal quality, brings the whole voice up to a more even standard of excellence. It leaves the best notes as good as ever and brings the notes which naturally are not so satisfactory, nearer the standard of the best. The great singers, in addition to natural aptitude, remain students throughout their careers. There are certain fundamental principles in a correct method of voice-production, for it is based upon study and knowledge of the organs concerned therein. But if the method were a hard-and-fast one, it would not be correct. For there are so many individual differences, physical and temperamental, between pupils, that there must be elasticity and adaptability in a method that claims to produce the best results. Knowledge and experience should be combined in a teacher. Garcia wrote a voice-manual; and Tosi published a method as far back as 1723. But a teacher who has bought a translation of the "Traité complet de l'Art de Chant" by no means is a second Garcia, nor has a teacher who chances to have read Tosi's book a right to set himself up as an instructor of singing after the old Italian method. The old Italians, like Tosi and Porpora, were men of great practical experience in teaching, and they understood how to adapt method to individual needs. Consciously or unconsciously, their method was physiological--the fundamental principles of the physiology of voice-production were there; but these great teachers knew that individual differences had to be allowed for and that a singing-method is not a shoemaker's last.