Comment: Notice how, as the exercise sequence progresses, Cornelius increases the rhythmic tempo to help the voice along.

Quote: Training in rhythmic response, used in conjunction with principles governing registration, makes it possible to restructure and revamp all aspects of vocal technique, and it constitutes one of the basic training procedures. Unlike pedagogic practices which attempt to directly regulate the tonal product ("nasal resonance," "tonal placement," ETC. ), rhythmic training allows the tone-producing mechanism to react. Because interfering tensions have been removed, the mechanism restructures itself, thereby refining the singer's tonal concepts and coordinating the muscle systems involved, as well as releasing many physical and psychological impediments to the communicative experience. (A Dictionary of Vocal Terminology)