medium of expression was simple, and it grew with the demand for a
larger expression.

This same process of evolution is seen in the growth of each individual.
The child, seeing grimalkin stalk stealthily into the room, points the
finger and says "cat." This is the complete expression of itself on that
subject. It is the sum total of its knowledge of zoology at that
particular moment; and a long process of development must follow before
it will refer to the same animal as a "Felis Domestica."

In a similar way musical expression keeps step with musical ideas. In
the beginning musical ideas were short, simple, fragmentary,
monosyllabic, mere germs of melody (adherents of the germ theory will
make a note of this). The Arab with his rudimentary fiddle will repeat
this fragment of melody [Illustration: Figure H] by the hour, while a
company of his unlaundered brethren dance, until exhausted, in dust to
their ankles, with the temperature near the boiling point. This musical
monosyllable is ample to satisfy his artistic craving. In other words it
is the complete musical expression of himself.

The following is a complete program of dance music for the aborigines of
Australia. [Illustration: Figure I] The repetition of this figure may
continue for hours. If it were inflicted on a metropolitan audience it
would result in justifiable homicide, but to the Australian it furnishes
just the emotional stimulus he desires.

[Illustration: Figure J] This one from Tongtoboo, played Allegro, would
set the heels of any company, ancient or modern, in motion.

These people may be said to be in the rhythmic stage of music, that is,
a stage of development in which a rhythmic movement which serves to
incite the dance furnishes complete artistic satisfaction.

As it is a long distance from the monosyllabic expression of the child
to the point where he can think consecutively in polysyllabic
dissertation, so it is an equally long distance from the inarticulate
musical utterances of the barbarous tribes to the endless melodies of
Wagner, which begin at 8 P. M. and continue until 12.15 A. M. without
repetition.

Following the course of music from the beginning we shall see that it
has kept pace with civilization. As the race has grown mentally it has
expressed itself in a larger and more perfect way in its literature, its
painting and music. Physically the race has not grown perceptibly in the
last five thousand years, but mentally its gro