Jana Sýkorová . Operatic contraltos

Artist Data: Emma Albertazzi was born 1814-05-01. Emma Died: 1847-09-25….

Artist Data: Marie Delna was born 1875-04-03. Marie Died: 1932-07-24….

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

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