Sonia Prina (2010-02- – 2010-accessdate-03). Operatic contraltos

Artist Data: Ernestine Schumann-Heink was born 1861-06-15. Ernestine Died: 1936-11-17….

Artist Data: Sophie Braslau was born 1892-08-16. Sophie Died: 1935-12-22….

Artist Data: Wikipedia: https://en.wikipedia.org/wiki/Magda_Spiegel

Artist Data: Wikipedia: https://en.wikipedia.org/wiki/Qiulin_Zhang

Artist Data: Margaret Kennedy was born 1776-12-06. Margaret Died: 1777-01-25….