Balık Sisters . Operatic mezzo-sopranos

Artist Data: Margery Booth was born 2010-09-. Margery Died: 2010-accessdate-10….

Artist Data: Ilse Gramatzki was born 1983-02-. Ilse Died: 2016-accessdate-11….

Artist Data: Olive Fremstad was born 1871-03-14. Olive Died: 1951-04-21….

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

Artist Data: Libuše Márová was born 2012-06-20. Libuše Died: 2448-sopranos-52….