Ingeborg Danz . Operatic contraltos

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

Artist Data: Clara Butt was born 1872-02-01. Clara Died: 1936-01-23….

Artist Data: Sara Mingardo was born 1961-03-02. Sara Died: 1961-03-02….

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

Artist Data: Sonia Prina was born 2010-02-. Sonia Died: 2010-accessdate-03….