Vocal Authority is about how singing styles develop and change, why classical singing is different from pop singing, and what singers actually mean when they sing. It takes a historical perspective, beginning with the ancient world, looking at changes in style up to the present day and why, for example, Freddie Mercury and Montserrat Caballe could sing together.
A very comprehensive overview of sung music and style of vocal production. Fascinated by the later conclusions of loss of text in classical singing compared to pop. This is as much a historical and sociological primer or survey as a teachnical description.