or exclusive origin in rhythmical vocal accompaniments to systematized
work. This view cannot, however, be maintained; systematized work can
scarcely be said to exist, even to-day, among most very primitive races;
it is much more probable that rhythmical song arose at a period antecedent
to the origin of systematized work, in the primitive military, religious,
and erotic dances, such as exist in a highly developed degree among the
Australians and other savage races who have not evolved co-ordinated
systematic labor. There can, however, be no doubt that as soon as
systematic work appears the importance of vocal rhythm in stimulating its
energy is at once everywhere recognized. Buecher has brought together
innumerable examples of this association, and in the march music of
soldiers and the heaving and hoisting songs of sailors we have instances
that have universally persisted into civilization, although in
civilization the rhythmical stimulation of work, physiologically sound as
is its basis, tends to die out. Even in the laboratory the influence of
simple rhythm in increasing the output of work may be demonstrated; and
Fere found with the ergograph that a rhythmical grouping of the movements
caused an increase of energy which often more than compensated the loss of
time caused by the rhythm.[89]

Rhythm is the most primitive element of music, and the most fundamental.
Wallaschek, in his book on _Primitive Music_, and most other writers on
the subject are agreed on this point. "Rhythm," remarks an American
anthropologist,[90] "naturally precedes the development of any fine
perception of differences in pitch, of time-quality, or of tonality.
Almost, if not all, Indian songs," he adds, "are as strictly developed out
of modified repetitions of a motive as are the movements of a Mozart or a
Beethoven symphony." "In all primitive music," asserts Alice C.
Fletcher,[91] "rhythm is strongly developed. The pulsations of the drum
and the sharp crash of the rattles are thrown against each other and
against the voice, so that it would seem that the pleasure derived by the
performers lay not so much in the tonality of the song as in the measured
sounds arrayed in contesting rhythm, and which by their clash start the
nerves and spur the body to action, for the voice which alone carries the
tone is often subordinated and treated as an additional instrument." Groos
points out that a melody gives us the essential impression of a _voice
t