Klaudia Taev, was an Estonian Vocal pedagogue, vocal pedagogy is the study of the art and science of voice instruction, it is used in the teaching of what?
Klaudia Taev: Klaudia Taev (13 April 1906, Saaremaa - 7 June 1985, Pärnu) was an Estonian Vocal pedagogue. Vocal pedagogy:  It is used in the teaching of singing and assists in defining what singing is, how singing works, and how proper singing technique is accomplished.
singing