"Most pupils seem to lack an absolute sense of rhythm--a great defect.
Yet where latent it may be developed. Here Kreutzer is invaluable,
since he presents every form of rhythmic problem, scales in various
rhythms and bowings. Kreutzer's 'Exercise No. 2,' for example, may be
studied with any number of bowings. To produce a broad tone the bow must
move slowly, and in rapid passages should never seem to introduce
technical exercises in a concert number. The student should memorize
Kreutzer and Fiorillo. Flesch's _Urstudien_ offer the artist or
professional musician who has time for little practice excellent
material; but are not meant for the pupil, unless he be so far advanced
that he may be trusted to use them alone.