Comment: High notes much easier. Stronger head voice. Compare this vibrato with the first two examples of this singer.

Quote: ...when the contractions of the muscles involved in phonation are not working harmoniously and co-operatively, the conditions necessary to produce a vibrato action have been destroyed. When this happens the vibrato disappears and is replaced by another type of voice movement less favorable to beautiful singing and reflecting the degree of disunity within the mechanism itself. (Bel Canto Principles and Practices)