Considering Vibrato Through the Lens of the Evolving Singing Voice: changes across the lifespan

This session will look at one feature of singing:  Vibrato!  What is it?  What causes it? What variables can be considered in a vibrato? Rate?  Extent? Range? Tensions? Does it change across the life span?  If so, how?  When?  Why? We are likely to leave with new understandings AND, perhaps, lots of questions.  We will consider anecdotal examples. We will talk about how to encourage a vibrato, straight tone, the difference between the two, and poor  substitutes for a vibrato.